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3 years ago

12

Using the substitution method, Vito is solving the following system of equations algebraically: y + 3x = -4 2x-3y = -21% D Which

equivalent equation could Vito use?

1 answer:

masha68 [24]3 years ago

8 0

Answer:

He could use y+3x=-4

Step-by-step explanation:

When we subtract 3x on both sides, we get y=-4-3x, which means we just solved a variable and can substitute into the other equation 2x-3y=-21

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One machine can make 138,800 small paper clip in one day another machine can make 84,250 large paper clips in one day how many m

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54550 is the answer
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3 years ago

Find the volume and the total surface area of a cuboide whose dimension 2m, 80cm and 60cm

DENIUS [597]

Answer:

Volume= 0.96m^3

TSA= 6.56m^2

Step-by-step explanation:

Given data

Length = 2m

Width= 80cm= 0.8m

Height= 60cm= 0.6m

Volume= L*W*H

Volume= 2*0.8*0.6

Volume= 0.96m^3

TSA=2lw+2lh+2hw

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2 years ago

Helen wants to buy a dictionary that costs $7, a dinosaur book that costs $16, and a children's cookbook that costs $17. She has

Hitman42 [59]

Answer:

Helen requires 15$ more to buy the three books.

Step-by-step explanation:

We are given the following in the question:

Cost of dictionary = $7

Cost of dinosaur book = $16

Cost of cook book = $17

Helen's allowance = $25

Total cost of three books =

$=7 +16+17\\=\$ 40$

Extra money required to buy three books =

$=40-25\\=\$15$

Thus, Helen requires 15$ more to buy the three books.

8 0

3 years ago

The length of one side, s, of a shipping box is s(x) = ^3√2x, where x is the volume of the box in cubic inches. A manufacturer n

almond37 [142]

Answer:

Minimum value: 6 inches,

Maximum value: 8 inches.

Step-by-step explanation:

To find the minimum length of s, we need to use the minimum volume of the shipping box in the equation, so:

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The maximum value of the volume will give us the maximum value of the length:

s_maximum = ^3√(2*256) = ^3√512 = 8 inches

So the minimum value of the length is 6 inches and the maximum value is 8 inches.

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3 years ago

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I think it may be 2700, but I'm not sure

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2 years ago

Read 2 more answers