the work of a student to solve a set of equations is: Equation A: y=15-2z and Equation B: 3y=3-4z so what would steps be?

Answers

Answer 1

Answer: You have to use substitution:

You already know what y is in terms of z so put it into the other equation

3(15-2z)=3 -4z
45-6z=3-4z
42=2z
21=z

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How far can your brother get if he can travel at 2.5 m/s and in 5 seconds you will discover that his squirt gun had run out of paint

Answers

Answer:

12.5 meters

Step-by-step explanation:

2.5 m/s for 5 seconds is

$2.5*5=12.5$

12.5 m after 5 seconds

Which is the best estimate for the quotient of 3,004.914 ÷ 0.298? A. 100 B. 1,000 C. 10,000 D. 100,000

Answers

the answer is C put it in a calculator

C
3,004.914 ÷ 0.298 = 10083.6040268

My last question! help me. ASAP

Answers

Answer: $119.43\ cm^2$

Step-by-step explanation:

The area of the rectangle can be calculated with the following formula:

$A_r=lw$

Where "l" is the length and "w" is the width.

In this case:

$l=12\ cm\nw=11\ cm$

Then, substituting values into the formula, you get that the area of the rectangle shown in the figure is:

$A_r=(12\ cm)(11\ cm)\n\nA_r=132\ cm^2$

The formula that is used to find the area of a circle is:

$A_c=\pi r^2$

Where "r" is the radius of the circle.

In this case you know that:

$r=2\ cm$

Then, the area of the given circle is:

$A_c=\pi (2\ cm)^2\n\nA_c=12.566\ cm^2$

Subtract both areas in order to find the area of the shaded region. Rounded to the nearest hundredth, this is:

$A_s=132\ cm^2-12.566\ cm^2\n\nA_s=119.43\ cm^2$

What is 0.78 divided by 3.51??? (Decimals)

Answers

0.78/3.51 = 0.222
The 0.222 repeats on forever, but writing it to the thousandths spot is generally an acceptable spot to stop writing the repeating number. If you're writing it on paper, put a line above the last number (or sets of numbers) that repeats. So, in this case, the last 2 in 0.222 would have a line above it, kind of like an upside-down underline, I guess.

If the area of the triangle ABC is 450 cm², m (< B) = 82° and m (< C) = 56°, Find the value of a (BC)

Answers

45 is BA so 50 is BC

In the equation 5 p = 7, what is the English translation of the variable, p? A. is equal to B. plus C. a number D. decreased by

Answers

Answer:

The answer is: C. a number.

Step-by-step explanation:

The answer is: C. a number.

That is obtained by clearing the incognite as follows: 5 p = 7; p = 7/5; p = 1.4

The answer is C. The P represents a varible.

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NEED HELP WORTH 50 POINTS !! Holly has a rectangular garden that measures 12 m wide by 14 m long. She wants to increase the area to 255 m2 by increasing the width and length by the same amount. What will be the width (shorter dimension) of the new garden? A. 16m wide B. 17m wide C. 14m wide D. 15m wide