2 years ago

Evaluate y = -4(5)* for x = 2

Mathematics

1 answer:

lakkis [162]2 years ago

4 0

Answer: Y= -10

Step-by-step explanation:

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The first side of a triangle is 7cm less than twice the second side. The third side is 4cm longer than the first side. The perim

Vinil7 [7]

Given:

First side(A): 2B - 7

Second side(B): B

Third side(C): B + 4

Plug in values:

A + B + C = 80

2B - 7 + B + B + 4 = 80

If you look at the coefficients only, you can rewrite the equation like this:

2B + B + B - 7 + 4 = 80

This means that 4B - 7 + 4 = 80

=4B - 3 = 80

= 4B = 80 + 3

B = 83/4, so you can either write B as 83/4 or as 20.75.

Checking your work:

A: 2(20.75) - 7 = 34.5

B: 20.75

C: 4 + 20.75 = 24.75

34.5 + 20.75 + 24.75 = 80cm.

Hope this helped.

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3 years ago

When a snozzberry marmalade machine works at 100% of its capacity, it can make 500 jars of snozzberry marmalade per hour. How ma

Amiraneli [1.4K]

Answer:

350

Step-by-step explanation:

500*70%=350

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3 years ago

Anna baked 3 batches of cookies with c cookies in each batch. She then ate 8 cookies! How many cookies does Anna have left? Writ

borishaifa [10]

Answer:

$3c-8$

Step-by-step explanation:

Let

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we know that

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$3c$ ------> equation that represent the total number of cookies

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then

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Which inequality's solution is graphed here? A) 3x + 5 > 3 Eliminate B) 3x - 5 > 3 C) 5x + 3 > 3 D) 5x - 3 > 3

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Here is the graph
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3 years ago

State the domain of the function y=3/x

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$Notice \ the \ equation \ contains \ x \ in \ the \ denominator.$

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3 years ago