Hi! Please help me solve this:

How did the temperature change if:
at first it decreased by 10% and then by 30%?
(I need the percent value)

Answers

Answer 1

Answer

by 20%????

Step-by-step explanation:


Related Questions

Helllp ASAP!!! I will give you a brainlist

Write the equation that describes the line with slope = 2 and y-intercept = in slope-intercept form.
O x = 2y +3/2
O y = 3\2+2
O y = 2x +3/2
O 2x + y =3/2

Answers

Answer:

y=2x+3/2

Step-by-step explanation:

2x is the slope and 3/2 is the y intercept

Answer:

y=2x+3/2

Step-by-step explanation:

because i said so.

PLS HELP ME ASAP!!!!!

Answers

Answer:

1:6 2:-5 3:-3

Step-by-step explanation:

Answer:

1. 6

2. -5

3. -3

Step-by-step explanation:

1. Since there are 2 negatives, they cancel out to create a positive. 18/3=6. The answer, is 6

2. Since there is only 1 negative, just do 20/4 and add a negative in front. 20/4= 5, then add the -, then boom, -5.

3. Again, 1 negative. 21/7=3. Add the negative, boom, -3.

Solve x in the triangle. Round your answer to the nearest tenth

Answers

Answer:

9.5

Step-by-step explanation:

Im just bult different.

ayo if i get this right can i get brainliest, i only need 2 more brainliest to get to the next rank :)

if x + y = x y = 5 then x ^2 y + X Y ^ 2 equals​

Answers

Answer:

25

Step-by-step explanation:

Note x^2y + xy^2 = xy(x+y)

We know xy = 5 and x+y = 5, so

5*5=25

17. Ms Steele is building a circular fountain, on the diagram 2 centimeters is equal to 5 feet. If
the diameter is 12 centimeters. What is the area of the actual fountain? Do you have to
convert first or last

Answers

Answer:

George Washingmachine

Step-by-step explanation:

Answer:

[tex]706.858[/tex] [tex]ft^{2}[/tex] ([tex]3[/tex] d.p)

Step-by-step explanation:

Convert first:

[tex]12 \div 2 = 6[/tex]

[tex]6 \times 5 = 30[/tex] [tex]ft[/tex]

Area of circle = [tex]\pi r^{2}[/tex]

[tex]= \pi (30\times \frac{1}{2})^{2}[/tex]

[tex]= 225\pi[/tex]

[tex]= 706.858[/tex] [tex]ft^{2}[/tex]([tex]3[/tex] d.p)

Hope this helps :)

Help 9th grade math please please please

Answers

Answer:

A.) This system has no solutions.

Step-by-step explanation:

y = 1/2x + 4

-1/2x + y = -5

-1/2x + (1/2x + 4) = -5

4 = -5

The system has no solutions, if we graph it, we get that it has the same slope with two different y-intercepts, these two are parallel. These two points will never meet at a point.

Answer:

use the relationship between coefficients of a pair of linear equations for no solutions i.e. a1/a2 equal to b1/b2 not equal to c1/c2 .

Here, a is coefficient of x and b is coefficient of y and c is constant term in both equation but make sure that you put the values of a1,a2,b1,b2,c1 and c2 after converting both equation in the form ax+by+c=0 with proper sign and here y=1/2(x) +4 is equation 1 and other is equation 2

The contestant weighed in at 300 lbs last week. Their current weight is 285 lbs. What is
their percent of decrease?

Answers

Answer:

5%

Step-by-step explanation:

The contestant lost 15lbs. 10% of 300 is 30. Split both of those in half and 15 is 5% of 300.

is 6^p > 0, then p > 0. Is this statement true, sometimes true, or not true?

Answers

Answer:

true

Step-by-step explanation:

divide 123 by 13 with remainder

Answers

Answer:

9  Remainder 6

Step-by-step explanation:

Step 1:

Start by setting it up with the divisor 13 on the left side and the dividend 123 on the right side like this:

             

 1 3 ⟌ 1 2 3

Step 2:

The divisor (13) goes into the first digit of the dividend (1), 0 time(s). Therefore, put 0 on top:

       0    

 1 3 ⟌ 1 2 3

Step 3:

Multiply the divisor by the result in the previous step (13 x 0 = 0) and write that answer below the dividend.

       0    

 1 3 ⟌ 1 2 3

      0    

Step 4:

Subtract the result in the previous step from the first digit of the dividend (1 - 0 = 1) and write the answer below.

       0    

 1 3 ⟌ 1 2 3

     - 0    

       1    

Step 5:

Move down the 2nd digit of the dividend (2) like this:

       0    

 1 3 ⟌ 1 2 3

     - 0    

       1 2  

Step 6:

The divisor (13) goes into the bottom number (12), 0 time(s). Therefore, put 0 on top:

       0 0  

 1 3 ⟌ 1 2 3

     - 0    

       1 2  

Step 7:

Multiply the divisor by the result in the previous step (13 x 0 = 0) and write that answer at the bottom:

       0 0  

 1 3 ⟌ 1 2 3

     - 0    

       1 2  

         0  

Step 8:

Subtract the result in the previous step from the number written above it. (12 - 0 = 12) and write the answer at the bottom.

       0 0  

 1 3 ⟌ 1 2 3

     - 0    

       1 2  

     -   0  

       1 2  

Step 9:

Move down the last digit of the dividend (3) like this:

       0 0  

 1 3 ⟌ 1 2 3

     - 0    

       1 2  

     -   0  

       1 2 3

Step 10:

The divisor (13) goes into the bottom number (123), 9 time(s). Therefore put 9 on top:

       0 0 9

 1 3 ⟌ 1 2 3

     - 0    

       1 2  

     -   0  

       1 2 3

Step 11:

Multiply the divisor by the result in the previous step (13 x 9 = 117) and write the answer at the bottom:

       0 0 9

 1 3 ⟌ 1 2 3

     - 0    

       1 2  

     -   0  

       1 2 3

       1 1 7

Step 12:

Subtract the result in the previous step from the number written above it. (123 - 117 = 6) and write the answer at the bottom.

       0 0 9

 1 3 ⟌ 1 2 3

     - 0    

       1 2  

     -   0  

       1 2 3

     - 1 1 7

           6

You are done, because there are no more digits to move down from the dividend.

The answer is the top number and the remainder is the bottom number.

Therefore, the answer to 123 divided by 13 calculated using Long Division is:

Hideki buys 2 sweaters for $18 each. He can use one of the following coupons:
Coupon 1: Buy one, get one 40% off
Coupon 2: 25% off entire purchase
Which coupon should Hideki use to get a better deal? Use the drop-down menus to show and explain your answer.

Choose...
is a better deal. Coupon 1 would result in a total cost of
Choose...
. Coupon 2 would result in a total cost of
Choose...
.

Answers

Answer:

Choose... Coupon 2

Coupon 2 is a better deal becausse Coupon 1 would result in a total cost of $25.2

Coupon 2 would result in a total cost of $6.5

Choose Coupon 2

Step-by-step explanation:

Coupon 1: 18+(18x0.4) =

Coupon 2: 18+18=26 26x0.25=6.5

Answer:

Coupon 2

Step-by-step explanation:

♦⭐Will mark brainliest⭐♦
Solve for x. 2/5x=6/5
A. x = 12/25
B. x = 12/5
C. x = 3
D. x = 6

Answers

Answer:

C. X = 3

Step-by-step explanation:

Multiply both sides by 5 to remove fractions

2x = 6

divide by 2

x = 3

What us the solution to the following equation? 3(7 + 2x) + 3 = 3(5 + x) - 9(x + 1) A. 3/2 B. 2/3 C. -2/3 D. -3/2​

Answers

Answer:

D -3/2

Step-by-step explanation:

Answer:

-3/2

Step-by-step explanation:

3(7+2x)+3=3(5+X)-9(X+1)

open the bracket

21+6x+3=15+3x-9x-9

collect like terms

21+3+9-15=-6x+3x-9x

re-arrange

6x-3x+9x=+15-9-21

12x=-18

X=-18/12

break down Into smallest units

X=-18/12=-9/6=-6/2

X=-3/2

hope the working is right and the answer too!

pleasee help me :( look the picture pleasee thank you

Answers

Answer:

$34.98

Step-by-step explanation:

$5.30 x 6 3/5 = $34.98

A group of 195 students did a community service project.
The students took a total of seven cars and buses. Each
car holds 5 students and each bus holds 45 students.
Use substitution to solve the system of equations to
determine the number of cars, x, and the number of
buses, y they took. Express your answer as an ordered

Answers

Answer:

Step-by-step explanation:

x+y=7

x=7-y

So x=7-y

Put this in 5(7-y)+45y=195

35-5y+45y=195

35+40y=195

40y=195-35

40y=160

y=160/40

y=4

So I know you just want the answer now.. so it’s just (3,4) your welcome

uhmmmm... yea............ ​

Answers

Answer:

You add 12.5+12.5+3.02+3.02 which equals 31.04

Step-by-step explanation:

Kira runs 7 miles in 60 minutes. At the same rate, how many miles would she run in 24 minutes.

Answers

Answer:

2.8 miles

Step-by-step explanation:

brian runs 7 miles in 60 minutes at the same rate how many miles would he run in 24 minutes?

(24/60)*7=2.8 miles

Which division problem does the model show? 3 fraction bars. The bars are labeled 1 and each has 3 boxes underneath labeled one-third. 3 divided by one-third = 9 3 divided by two-thirds = 9 9 divided by one-third = 3 9 divided by two-thirds = 3

Answers

Complete Question

Which division problem does the model show? 3 fraction bars. The bars are labeled 1 and each has 3 boxes underneath labeled one-third.

a) 3 divided by one-third = 9

b)3 divided by two-thirds = 9

c) 9 divided by one-third = 3

d) 9 divided by two-thirds = 3

Answer:

a) 3 divided by one-third = 9

Step-by-step explanation:

We are told in the question that:

3 fraction bars. The bars are labeled 1 and each has 3 boxes underneath labeled one-third.

The division problem does the model shows from the description above is calculated as:

3 fraction bars ÷ 1/3

= 3 ÷ 1/3

= 3 × 3

= 9

Hence:

Option a) 3 divided by one-third = 9 is the correct option.

Answer:

3rd one is correct

Step-by-step explanation:

Solve.

−35x=18

−30

−1045

1045

30

Answers

Answer:

if you're trying to solve  -35x= 18   .. then do the following

Step-by-step explanation:

x = -18 / 35

x= -0.5142857143

I'm guessing that b/c the answer is not an easy number that you probably are trying to do something else. .. ask again  :)

Answer:

−30

Step-by-step explanation:

What’s the measurement of the angle

Answers

Answer:

Step-by-step explanation:

Answer:

i think c

Step-by-step explanation:

not completely sure tho

Which equation represents the graphed function?
10,3)
(32)
2
5
-3 -2 -1
1
3
4 5
-2
DR
Or
A
y = -3x + 3
B
y=-{x+3
С
y = 3x -
D
y = 3x - 3

Answers

Answer:

the equation is y=-1/3x+3

What is the value of 2(5b - 7) in terms of y if b = 3y ?

Answers

2(5b-7), you can input b as 3y
2(5(3y)-7) —> 2(15y-7) —> 30y -14
—> 30y = 14 —> y = 14/30 —> y = 4.6667
It’s just 2(5(3y)-7) or 2(15y-7), which is 30y-14.

Find the value of y picture *****

Answers

i think its 54 too soo

what is 2x4(6.5x9.5) power of 12 show your work

Answers

Answer:

24.584...

Step-by-step explanation:

2x4(6.5x9.5) power of 12

2x4 x 61.75 power of 12

2x4 x 3.073...

8 x 3.073...

24.584...

HELP ASAP!!!
What is the range of the relation shown below?
{(-4, 1), (-2, 0), (8, -1)}

Answers

(1,0,-1)
Range is the y function


Which statement below is not true about plant cells.
1.a plant cell has a larger vacuole than a animal cell
2.a plant cell has a cell wall while an animal cell does not
3.a plant cell has chloroplasts which contain chlorophyll and carry out photosynthesis
4.the nucleus in a plant contains DNA while the nucleus in an animal cell does not.
Please and thank you

Answers

Answer:

4

Step-by-step explanation:

Number 4 because it is not true

Find the area of the irregular shape !!!

Answers

Step-by-step explanation:

Area of triangle = base × height ×½

triangle = 9×8×½=36cm²

rectangle = length×width

rectangle = 15×26=390cm²

area of irregular fig= 390+36 =426cm²

31q=7.037 what is the value of q??

Answers

Answer:

0.227

Step-by-step explanation:

q=7.037/31

q=0.227

The points (6, -3) and (7, -10) fall on a particular line. What is its equation in point-slope form? Use one of the specified points in your equation. Write your answer using integers, proper fractions, and improper fractions. Simplify all fractions.

Answers

Answer:

Step-by-step explanation:

Given the coordinate points (6, -3) and (7, -10), we are to find the equation of a line passing through this two points;

The standard equation of a line is y = mx+c

m is the slope

c is the intercept

Get the slope;

m = Δy/Δx = y2-y1/x2-x1

m = -10-(-3)/7-6

m = -10+3/1

m = -7

Get the intercept;

Substitute the point (6, -3) and m = -7 into the expression y = mx+c

-3 = -7(6)+c

-3 = -42 + c

c = -3 + 42

c = 39

Get the required equation by substituting m = -7 and c= 39 into the equation y = mx+c

y = -7x + 39

Hence the required equation is y = -7x + 39

What is the value of x in the equation 3(x + 10) = 4(x − 2)?

Answers

Answer:

3x+30=4x-8

-x=-38

x=38

Final Answer: [tex]x = 38[/tex]

Steps/Reasons/Explanation:

Question: What is the value of x in the equation [tex]3(x + 10) = 4(x - 2)[/tex]?

Step 1: Expand.

[tex]3x + 30 = 4x - 8[/tex]

Step 2: Subtract [tex]3x[/tex] from both sides.

[tex]30 = 4x - 8 - 3x[/tex]

Step 3: Simplify [tex]4x - 8 - 3x[/tex] to [tex]x - 8[/tex].

[tex]30 = x - 8[/tex]

Step 4: Add [tex]8[/tex] to both sides.

[tex]30 + 8 = x[/tex]

Step 5: Simplify [tex]30 + 8[/tex] to [tex]38[/tex].

[tex]38 = x[/tex]

Step 6: Switch sides.

[tex]x = 38[/tex]

~I hope I helped you :)~

Plzzzzzzzzz help I don’t understand!! I’ll give brainliest to whoever gives me the answer!

Answers

i’m pretty sure the answers 104 :)
x=-7
triangle=180°
add up the numbers given (37+67+90) then subtract from 180, you get (negative)-14 then divide by 2 (the number of x’s)
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