I don't understand at all of how to do this ​

Answer:

25 and 15

Step-by-step explanation:

let the 2 numbers be x and y , x > y , then

x + y = 40 → (1)

x - y = 10 → (2)

add the 2 equations term by term to eliminate y

2x + 0 = 50

2x = 50 ( divide both sides by 2 )

x = 25

substitute x = 25 into (1)

25 + y = 40 ( subtract 25 from both sides )

y = 15

the 2 numbers are 25 and 15

Answer:

bc=12x

ab=17

ac=141

Step-by-step explanation:

Answer:

i think its 13 im not too sure. Im not that good at math

Step-by-step explanation:

Answer:

4:18 and 6:27

Step-by-step explanation:

Answer:

the correct answer is option b and c

Answer:

No this is not a function

Step-by-step explanation:

If you use the vertical line test which is just a line used across the graph. If we can draw any vertical line that intersects a graph more than once then it is not a function.

Answer

148/26 = 5.69  min/mile

Step-by-step explanation:

Unit rate    miles per minute  =    26/148 = 0.175= 0.176 miles per minute (rounded)

If you want minutes per mile  148/26 = 5.69  min/mile      

Answer:

0

Step-by-step explanation:

When trying to solve this we have only y left over. if we only have the slope for y it is 0. if we only have the slope for x it is undefined.

Pls tell me if it is wrong

If it is I am sorry

Answer:

She should ski on Slope B because it is steeper

Step-by-step explanation:

Slope B is steeper than Slope A, so she should ski on Slope B.

First, you must find common multiples for the denominator.

[tex]\frac{15}{24}=\frac{30}{48}[/tex]     slope A

[tex]\frac{12}{16}=\frac{36}{48}[/tex]     slope B

Slope B has a higher vertical feet per 48 horizontal feet, so slope B is steeper.

9514 1404 393

Answer:

  x = -8, 8

Step-by-step explanation:

The argument of the absolute value function can be positive or negative to give the same result.

  |-8| = 8   ⇒   x = -8

  |8| = 8   ⇒   x = 8

The possible solutions are x = -8, 8.

Answer: i think 130 and 80

Step-by-step explanation: sorry if wrong

Answer:

It was $539.52

Step-by-step explanation:

Answer:

$539.52

Step-by-step explanation:

Answer:

1 ft³ of gold will weigh 1209.6 pounds

1 ft³ of copper will weigh 559 pounds.

Step-by-step explanation:

We know the formula for:

Density = Mass/Volume

Hence, making mass the subject of the formula:

Mass = Density × Volume

From the question we are told:Volume of each metal = 1 ft³

1) Metal: Gold

Density of Gold = 0.70 pounds per cubic inch(lb/in³)

We convert the Volume of gold from ft³ to in³

The Volume of gold given in the question = 1 cubic foot = 1 ft³

1 cubic foot = 1728 cubic inches

Hence, the volume of Gold = 1728 in³

Mass of Gold = Density of Gold × Volume of Gold

Mass of Gold = 0.70Ib/in³ × 1728 in³

= 1209.6 lb(pounds)

2) Metal : Copper

Density of copper given in the question = 8.96 grams per cubic centimeter

Ib = pounds

We convert this density in g/cm³ to ib/in³

453.5g = 1 Ib

8.96g = a Ib

Cross Multiply

= 453.5g × a Ib =8.96g × 1 Ib

= a Ib = 8.96g × 1 Ib/453.5g

a Ib = 0.0197574421 Ib

Density of Copper = 0.0197574421 Ib/cm³

28,316.8 cm³ = 1 ft³

1 cm³ = b ft³

b ft³ = 1 cm³ × 1 ft³/28,316.8cm³

b ft³ = 0.0000353147 ft³

1 cm³ = 0.0000353147 ft³

We have to convert the density of Copper from Ib/cm³ to Ib/ft³

0.0197574421 Ib/cm³ = 0.0197574421 Ib/0.0000353147 ft³

559.46793026 Ib/ft³

Volume of copper = 1ft³

Mass = Density × Volume

Mass of copper = 559.46793026 Ib/ft³ × 1 ft³

= 559.46793026 Ib or pounds

≈ 559 pounds

Therefore , the weight of gold is 1209.6 pounds and the weight of copper will be 559 pounds.

Answer:

Gold

Density of Gold = 0.70 pounds per cubic inch

1 cubic foot = 1728 cubic inches

Hence, the volume of Gold = 1728 in³

Mass of Gold = Density of Gold × Volume of Gold

Mass of Gold = 0.70Ib/in³ × 1728 in³ = 1209.6 lb(pounds)

2) Metal : Copper

Density of copper given in the question = 8.96 grams per cubic centimeter

We convert this density in g/cm³ to ib/in³

453.5g × a Ib =8.96g × 1 Ib = 8.96g × 1 Ib/453.5g = 0.0197574421 Ib

Density of Copper = 0.0197574421 Ib/cm³

Volume of copper = 1ft³

Mass = Density × Volume

Mass of copper = 559.46793026 Ib/ft³ × 1 ft³ = 559.46793026 Ib or pounds

≈ 559 pounds

The weight of gold is 1209.6 pounds and the weight of copper will be 559 pounds.

The measure of the remaining angle is 72 degree, the correct option is A.

A trapezoid, also known as a trapezium, is a flat closed shape having 4 straight sides, with one pair of parallel sides.

Given

A recycling bin is shaped like a trapezoid.

The bottom 2 angles are 108 degrees.

The top left angle is 72 degrees.

The front view of a recycle bin is shaped like a trapezoid is given by;

[tex]\rm \angle 1+ \rm \angle 2+ \rm \angle 3+ \rm \angle4= 360\\\\108+108+72\rm +\angle 4=360\\\\\rm 288+\angle 4 = 360 \\\\\rm \angle 4=360-288\\\\\rm \angle 4=72[/tex]

Hence, the measure of the remaining angle is 72 degree.

To know more about trapezoid click the link given below.

https://brainly.com/question/3319408

Answer: A) 72

Step-by-step explanation: I got it right

Answer:

y=6.25x+10

Step-by-step explanation:

6.25 is the rate of change so it is the slope.  10 is what you start with so it is the y- intercept

Answer:

10 weeks

Step-by-step explanation:

Let’s replace ‘t’ with numbers going up starting from 0 on both sides of the equation. Repeat until you get to 10 and you see that both are equal at $170 has been saved after 10 weeks.

John’s equation: 40 (y intercept) + 13t (saved per week)

Issac’s: 80 (y intercept) + 9t (amount saved per week)

The y-intercept represents the amount of money already saved up.

Answer:

21 pencils for Nick and 63 pencils for Lance

Step-by-step explanation:

Now let's make an equation out of the information above:

3x + x = 84

Now solve for x.

3x + x = 84

4x = 84

x = 84/4

x = 21

So Nick has 21 pencils

Now for Lance:

3x

3 * (21) = 63

So Lance has 63 pencils

63 + 21 = 84 pencils

Answer:

-17/24

Step-by-step explanation:

Because they are negative numbers, the smaller fraction (when disregarding the negative sign) is always a larger number. -11/12 could be changed to -22/24, and therefore since it is a larger number when disregarding the negative (22/24), it is a smaller number altogether.

-17/24 > -22/24

Answer:

5,382 yards

Step-by-step explanation:

To find the area, just multiply the width and length together. Don't forget the unit!!

Answer:  105 of them are hummingbirds.

Step-by-step explanation:

I there are a total of 350  birds then 30% o 350 will give the number o hummingbirds.

350 of 30%

350 * 0.3 = 105

Answer:

It means that the value of X is 15

X/5=3/1

or,X=3×5

or,X=15

Answer:

value of X is 5 ani if there was y then it would be vaule of y

perpendicular"

Step-by-step explanation:

We need to find slope (m) of both line JK and LM

Slope has formula:

Lets find slope of JK:

Lets find slope of LM:

we know if we multiply two lines' slope and get -1, they are perpendicular. Let's check:

Hence, they are perpendicular

Answer:

The coordinates of its image are (2, -4)

Step-by-step explanation:

Let us revise the rules of reflection across the axes

∵ The point (2, 4) is reflected across the x-axis

→ By using the first rule above rx-axis (x, y) → (x, -y)

∴ Change the sign of its y-coordinate

∴ Its image is (2, -4)

∴ The coordinates of its image are (2, -4)

Given:

3 times x plus 4 is greater than or equal to 4 times the sum of x and 1.

To find:

The inequality for the given statement and solution of the inequality.

Solution:

4 times the sum means a distributive property problem.

Now,

3 times x : 3x

3 times x plus 4 : 3x+4

Greater than or equal to : ≥

4 times the sum of x and 1 : 4(x+1)

So, the inequality is

[tex]3x+4\geq 4(x+1)[/tex]

Using distributive property, we get

[tex]3x+4\geq 4x+4[/tex]

Isolate variable terms.

[tex]4-4\geq 4x+3x[/tex]

[tex]0\geq x[/tex]

It can be written as

[tex]x\leq 0[/tex]

Therefore, the required inequality is [tex]3x+4\geq 4(x+1)[/tex] and the solution is [tex]x\leq 0[/tex].

Answer:

square the vertical starting from bisect angle !

Answer:

729,646 > 729,054

6

scale factor:

new image ÷ original image

Here:

Answer: A: 6

Step-by-step explanation:

Answer:

I can solve partial

Step-by-step explanation:

Given that,

Diameter of semicircle= 5m

Radius= 2.5m

Now,

Perimeter= πr

=3.14×2.5

= 7.85

Answer:

0

Step-by-step explanation:

63/7 = 9

We know,

If any number smaller then fifty told to be rounded to its nearest hundred then the answer is ' 0 '

Similarly the nearest hundred of 9 is 0.

Hope it helps

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