All categories

3 years ago

Evaluate the expression for the given values of the variables.

Mathematics

2 answers:

Vesna [10]3 years ago

7 0

The answer is D or -30

Anna71 [15]3 years ago

4 0

4(-5) + 7(3) + 3(-5) - 2(3) + 2(-5)

-20 + 21 + (-15) - 6 + (-10)

1 + (-15) - 6 + (-10)

(-14) - 6 + (- 10)

-14 + -6 + (-10)

-20 + -10

= -30

the answer is -30

You might be interested in

Kenny reads 4/9 page in 3/5 min. what is Kenny's unit rate? <br><br> Step by step.

il63 [147K]

Answer:

The unit rate is $\frac{27}{20}\text{ page/minute}$

Step-by-step explanation:

Given : Kenny reads $\frac{4}{9}$ page in $\frac{3}{5}$ min.

To find : What is Kenny's unit rate?

Solution :

Kenny reads $\frac{4}{9}$ page in $\frac{3}{5}$ minute

This can be written as,

$\frac{4}{9}\text{ page}=\frac{3}{5}\text{ minute}$

Divide both side by $\frac{9}{4}$

$\frac{4}{9}\times \frac{9}{4}\text{ page}=\frac{3}{5}\times \frac{9}{4}\text{ minute}$

$1\text{ page}=\frac{27}{20}\text{ minute}$

The unit rate is $\frac{27}{20}\text{ page/minute}$

4 0

3 years ago

Evaluate each expression x=-3,y=6,z=-4what is x+y+(-1)

Alex_Xolod [135]

substitute the numbers.

-3 + 6 - 1

= 2

8 0

3 years ago

The surface areas of two similar solids are 340 yd² and 1,158 yd². The volume of the larger solid is 1,712 yd³. What is the volu

ratelena [41]

The ratio of surface area is equal to the ratio of the square of the corresponding dimensions. And ratio of volumes of two solids is equal to the cube of the ratio of the corresponding dimensions .

We start with the relation between ratio of surface area and ratio of corresponding sides. That is

$\frac{340}{1158}=(\frac{x}{y} )^2$

Here x and y are the corresponding sides .

$\frac{x}{y} =\sqrt{\frac{340}{1158} } =0.542$

Let the volume of the smaller one be v

$\frac{v}{1712}=0.542^3$

$v=1712*0.542^3=272$

So for the smaller solid, volume is 272 . And the correct option is the first option .

4 0

4 years ago

Number 7, please help me

MariettaO [177]

Answer:

oh dang.. imma head out, no big brain time for me..

Step-by-step explanation:

4 0

3 years ago

If anyone can help with number 4

Klio2033 [76]

If you do 27-12 (which is 15) you add 15 to 13 and 20

3 0

3 years ago