3 years ago

2y-z for y=21 and z=19

Mathematics

1 answer:

GalinKa [24]3 years ago

7 0

Answer:

Step-by-step explanation:

use desmos scientific cal

next time.

You might be interested in

Allison can jog 3 blocks in the same amount of time it takes her brother, Blake, to jog 2 blocks. If they keep jogging at the sa

Nitella [24]

Answer:

Blake will jog 12 blocks

Step-by-step explanation:

Allison : Blake = 3 : 2

If they keep jogging at the same rate, how many blocks will Blake jog if Allison jogs 18 blocks?

Allison : Blake = 18 : x

Equate the ratios

3 : 2 = 18 : x

3/2 = 18/x

Cross multiply

3 * x = 2 * 18

3x = 36

Divide both sides by 3

x = 36 / 3

= 12

x = 12

Blake will jog 12 blocks

6 0

3 years ago

Read 2 more answers

Assessment Practice

frosja888 [35]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Pls work out and give detail. Use the slope formula to determine the slope of each line.

kolbaska11 [484]

Answer:

$m=0$

Step-by-step explanation:

Given

See attachment

Required

Determine the slope of the line

From the attachment, we have the following points

$(x_1,y_1) = (-4,1)$

and

$(x_2,y_2) = (3,1)$

The slope m is then calculated using:

$m = \frac{y_2- y_1}{x_2 - x_1}$

Substitute values for the x's and y's

$m = \frac{1-1}{3 - (-4)}$

$m = \frac{1-1}{3 +4}$

$m = \frac{0}{7}$

$m=0$

<em>Hence, the slope is 0</em>

7 0

3 years ago

Polygon B is a scaled copy of Polygon A using a scale factor of 5.

SVEN [57.7K]

Answer:

5times largerof apolygon

4 0

3 years ago

What is the slope of the line? (2,3) (4,2)

Rainbow [258]

Formula for slope: $\frac{y2-y1}{x2-x1}$
Plug in: $\frac{2-3}{4-2} 
= - \frac{1}{2}$
Slope: $- \frac{1}{2}$
Answer: $B$

7 0

3 years ago

2y-z for y=21 and z=19​

2y-z for y=21 and z=19