Answer:
d) 3
Step-by-step explanation:
7x+4=25
7x=21
X=3
Answer: D. 3
Step-by-step explanation:
Given
7x+4=25
Subtract 4 on both sides
7x+4-4=25-4
7x=21
Divide 7 on both sides
7x/7=21/7
x=3
Hope this helps!! :)
Please let me know if you have any questions
3. Write the function g(x) = -x2 - 4x in vertex form, using decimals as necessary.
Answer:
The vertex form is [tex]y=-(x+2)^2+4[/tex]
Step-by-step explanation:
If the resistance in an electrical cirouit is
held constant, the amount of current
flowing through the circuit is directly
proportional to the amount of voltage
applied to the circuit. When 12v are applied
to a circuit, 240 mA of orrent flow
through the circuit. Find the new current if
the voltage is increased to 14 volts.
Can someone help me please
In the morning, a farm worker packed 3 pints of strawberries every 4 minutes. In the afternoon, he packed 2 pints of strawberries every 3 minutes. What was the difference between the morning and afternoon pack rates, in pints per hour?
A 5
B10
C40
D45
Answer:
A 5
Step-by-step explanation:
60 mins = 1 hour
60 divided by 4 is 15
60 divided by 3 is 20
15 times 3 is 45
20 times 2 is 40
45 - 40 is 5
The differnce between a number divide by 3 and 4 is 20
Answer:
(n/3)/4 =20
Step-by-step explanation:
i think this is what your looking for if not im sorry
have a blessed day :)
My classroom is 12 feet by 16 feet. What is the area of my classroom? Make sure you label your answer correctly with your answer.
Answer:
[tex]192 \: sq {}^{2} [/tex]
Step-by-step explanation:
To find area, multiple the length by the width. In this case, the length is [tex]16[/tex] and the width is [tex]12[/tex].
[tex]12×16=192[/tex]
Please someone help me with this question
Answer:3^2
Step-by-step explanation:
Callie has a new kitten. The kitten weighs 3 pounds less than half the weight of Callie’s cat. Together, the cat and the kitten weigh 18 pounds. Which system of equations could be used to find the weight of each animal?
Let K = Kitten and C = Callie the Cat
A) K= 1/2C-3
K+C=18
B) K= 1/2C+3
K-C=18
C) K= 1/2C+3
K= -C+18
D) K= 1/2C-3
C - K=18
Answer:
A) K=1/2C-3
K+C=18
Step-by-step explanation:
The rectangle is 16 inches by 25 inches. If the scale is 4 in :5 ft what is the length and width of the rectangle in feet.
Answer:
The length and width of the rectangle are 20 feet and 31.25 feet, respectively.
Step-by-step explanation:
Let the scale be [tex]4\,in\,:\,5\,ft[/tex] and the dimensions of the rectangle being 4 inches and 5 inches, respectively. The scale ([tex]r[/tex]), measured in inches per feet, is equivalent to the following rational number:
[tex]r = \frac{4\,in}{5\,ft}[/tex]
We can convert each length by dividing it by scale factor. That is:
Length
[tex]l' = \frac{16\,in}{\frac{4\,in}{5\,ft} }[/tex]
[tex]l' = 20\,ft[/tex]
Width
[tex]w' = \frac{25\,in}{\frac{4\,in}{5\,ft} }[/tex]
[tex]w' = 31.25\,ft[/tex]
The length and width of the rectangle are 20 feet and 31.25 feet, respectively.
Can you please tell me the equation to solve for x
Answer:
53 + 67 + x = 180
Step-by-step explanation:
Answer:
180 = 53 + x + 67
(A straight line equals 180°)
good luck, hope this helped :)
1. What do you remember about the slope of a line? 2. A ramp may not be steeper than 1:12. Draw a right triangle whose "rise" is 1 unit, and whose "run" is 12 units. 3. Set up a trig ratio and use it to solve for the maximum angle of elevation of the ramp. Round to the nearest hundred 4. The height of the door on your restaurant is 9.5 inches from the ground. Using the maximum angle of elevation possi what would the length of the ramp be (x)? What would the horizontal distance be (y)
I remember every thing it was so good j set ramp
Alexandra is going to a carnival that has games and rides. Each game costs $3 and
each ride costs $4.50. Alexandra spent $54 altogether at the carnival and the number
of rides she went on is 7 more than the number of games she played. Graphically
solve a system of equations in order to determine the number of games Alexandra
played, 2, and the number of rides Alexandra went on, y.
PLEASE ANSWER ASAP
Answer:
Game =$6 and ride=$9, to solve is 3x+4y=54
x+y=15
Step-by-step explanation:
;)
Please help right now
Answer:
C
Step-by-step explanation:
the negative sign in -0.3 implies that it is below and the only answer choice with the word below is
C: New orleans is 0.3m below sea level
If Evan wants 5/8 mile to his friends house then together they walked 7/12 mile to the movie theater which pair of fractions can avenues to find how far they walked in all
Answer:
5/8 + 7/12
Step-by-step explanation:
Miles to friends house = 5/8
Ditance to the movies = 7 1/2
To find the total distance walked in Wal, we sun the fraction of distance Evans walked to his friend's house and the distance walked from friend's house to the movies ;
That is :
5/8 + 7/12
= 29/24 miles
Can somebody help me please
A(n) _____ inequality is an inequality involving a quadratic expression.
A. Quadratic
B. Linear
C. Absolute value
D. Rational
Answer:
Step-by-step explanation:
A.Quadratic
a cylinder has height of 12 and a diameter of 10 find the volome
Answer:
942.48
Step-by-step explanation:
V=πr^2h=π·5^2·12≈942.4778
A family of 2 adults and 3 children went on holiday to Miami.
The family visited a theme park.
They paid a total of 322 dollars to go in.
The exchange rate was £1 = 1.84 dollars.
Change 322 dollars to pounds (£).
Answer:
£175
Step-by-step explanation:
Given the exchange rate was £1 = 1.84 dollars.
We are to change 322 dollars to pounds (£).
£1 = 1.84 dollars.
x = 322 dollars
Cross multiply
1.84 * x = 322
1.84x = 322
x = 322/1.84
x = 175
Hence 322 dollars in pounds will be £175
A.42.6 square units
B. 128 square units
C. 32 square units
D. 64 square units
Answer:
Step-by-step explanation:
D. 64 square units
A,E, and D are collinear. BCDE is a parallelogram. Find m
Answer:
B. 29º
Step-by-step explanation:
Given that BCDE is a parallelogram, then [tex]BE \parallel CD[/tex] and A, E and D are collinear. Then, angle E inside triangle ABE and angle D inside parallelogram BCDE have the same measure. That is:
[tex]\angle D = \angle E = 51^{\circ}[/tex] (1)
In addition, the sum of internal angles in triangles equals 180º, which implies that:
[tex]\angle A + \angle B + \angle E = 180^{\circ}[/tex] (2)
If we know that [tex]\angle B = 100^{\circ}[/tex] and [tex]\angle E = 51^{\circ}[/tex], then [tex]\angle A[/tex] is:
[tex]\angle A = 180^{\circ}-\angle B - \angle E[/tex]
[tex]\angle A = 180^{\circ}-100^{\circ}-51^{\circ}[/tex]
[tex]\angle A = 29^{\circ}[/tex]
Hence, correct answer is B.
Answer:
The answer would be be 29 degrees
Step-by-step explanation:
solve this please
log(4x+16)=2
Answer:
X = -3.5
Step-by-step explanation:
Answer:
-7/2
Step-by-step explanation:
4x+16=2
-16 -16
4x= 2-16
4x=-14
/4 /4
x= -7/2
tim bought all of the 2 3 over 4 lb packages for a party
How many pounds of meat fid tim buy?
Answer: he bought 1 and 1/2 pounds of meat. (also could be written as 1.5 pounds)
Step-by-step explanation:
We know that Tim bought all of the two 3/4 lb packages for a party.
Then he bought 2 packages. Such that each package has 3/4 lb meat.
Then the total amount of meat that Tim has is equal to 2 times the amount of meat in each package, this is:
Total meat = 2*(3/4 lb) = (6/4 lb)
and we can write 6 = 4 + 2
then:
Total meat = 6/4 lb = (4 + 2)/4 lb = (4/4 + 2/4) lb = (1 + 1/2) lb
So he bought 1 and 1/2 pounds of meat. (also could be written as 1.5 pounds)
Everything we see and touch is made of ______.
Answer:
chemicals
Step-by-step explanation: everything we see and touch is made up of a mixture of chemicals
If you earn $10 per hour babysitting, and you work 5 hours per week, how much money will you earn in 4 weeks?
Answer:
$200
Step-by-step explanation:
1 week: $50
1 week ($50) x 4 = $200
Answer: You will earn $200 in the span of 4 weeks.
Step-by-step explanation:
• First, multiply the pay rate ($10 per hour) by the number of hours (5), yielding $50 a week.
• Multiply the total pay in the span of 1 week by the number of weeks (4 in this case), resulting in $200 in the span of 4 weeks.
ASAP plot the graph here arigato
Answer:
Its point A. Or 4,5 or -4,5
Step-by-step explanation:
Is (1,3) a solution to this system of equations?
4x+5y=19
x+5y=16
Answer:
yes
Step-by-step explanation:
Answer:
yes!
Step-by-step explanation:
4 + 15 = 19
1 + 15 = 16
hope that helped! i'm not the best at explaining stuff, srry!
How do I find these equations using substitution y=-3x+5 and 5x-4y=-3 ?
Answer:
x=1
Step-by-step explanation:
you would change it to 5x-4(-3x+5)=-3, because you put the info for the first equation into the second equation.
5x-4(-3x+5)=-3
5x+12x-20=-3
17x-20=-3
17x=17
x=1
Answer:
(1,2)
Step-by-step explanation:
1) To solve using substitution, first isolate one of the variables in one of the equations. However, the y in y = -3x + 5 has already been isolated, so we don't need this step. Instead, take that value of y and substitute it for the y in the other equation, 5x - 4y = -3. So, substitute -3x + 5 for the y in 5x - 4y = -3 and solve:
[tex]5x-4(-3x+5)= -3\\5x+12x-20=-3\\17x-20=-3\\17x = 17\\x = 1[/tex]
2) So, x = 1. Now, take that value of x and substitute back into any of the equations to find the y value. (I chose to substitute it into y = -3x + 5, but either choice is fine). So, substitute 1 for the x in y = -3x + 5 and solve:
[tex]y = -3(1)+5\\y = -3+5\\y = 2[/tex]
So, y = 2. Thus, by knowing both x and y values, the solution would be (1,2).
7.1 divided by 312.755
answer 0.0227014756
Step-by-step explanation:
or if you meant 312.775/7.1 it's 44.0528169
Solve the system by substitution.
-4x-y=1
-9x+9=y
Answer:Add
9
to both sides of the equation.
x
=
y
+
9
x
+
y
=
6
Replace all occurrences of
x
with
y
+
9
in each equation.
Tap for more steps...
2
y
+
9
=
6
x
=
y
+
9
Solve for
y
in the first equation.
Tap for more steps...
y
=
−
3
2
x
=
y
+
9
Replace all occurrences of
y
with
−
3
2
in each equation.
Tap for more steps...
x
=
15
2
y
=
−
3
2
The solution to the system is the complete set of ordered pairs that are valid solutions.
(
15
2
,
−
3
2
)
The result can be shown in multiple forms.
Point Form:
(
15
2
,
−
3
2
)
Equation Form:
x
=
15
2
,
y
=
−
3
2
image of graph
Step-by-step explanation:
Toby is trying to show his teacher why the product of two rational numbers is another
rational number. His first steps are shown. Which is the best method Toby could use to
proceed?
L
B
Using the concept of rational numbers, it is found that the best method Toby could use is a multiplication of fractions, as the product of two fractions(two rational numbers) is always a fraction(rational number).
-------------
A rational number, no matter if an integer, a finite decimal or a repeating decimal can always be represented by a fraction.The product of two fractions will always result in a fraction, as the numerator of the multiplication is the multiplication of the numerator of the factors, and same for the denominator.Thus, since the product of two fractions is always a fraction, the product of two rational numbers is always a rational number.A similar problem is given at https://brainly.com/question/10814303