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lana [24]
3 years ago
5

Robert graded his friend Sam's practice test and a him a 72% Sam checked it again in found that he really made a 80% Robert said

relax i only made an error of 8%Is robert correct
Mathematics
1 answer:
stira [4]3 years ago
7 0

Answer:

No

Step-by-step explanation:

Use the formula, difference/original. The difference is 8%. The original is 72%.

The equation would be: 8/72

Which is 1/9

1/9 = 11.1%

So he made a mistake of 11%

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Jesse dyes dresses. She had to dye 30 dresses. She has so far finished 20 dresses. What fraction of dresses has she finished?
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Ukonczyła 20-ścia 30-dziestych

6 0
4 years ago
This is algebra just letting u know and plzz help
worty [1.4K]

Algebra

The graph is C, or the graph down left.

This is because the other graphs lack the same vertex.

7 0
3 years ago
Can someone please solve for x
RoseWind [281]

Answer:

x = -11

Step-by-step explanation:

2x + 23 + 9 = x + 21

Combine common factors

2x + 32 = x + 21

Subtract x from both sides

x + 32 = 21

Subtract 32 from both sides

x = -11

5 0
3 years ago
A box contains paper clips of three different sizes. The numbers of each size of paper clip are listed below.
Bond [772]

Answer:

\frac{7}{10}

Step-by-step explanation:

Add all paper clip sizes together:

100 + 250 + 150 = 500

They want the probability of either a small or medium being chosen, so you add both paper clips sizes together.

100 + 250 = 350

Now put the number of small and medium paper clips together over the total number of paper clips to find the probability.

Can divide 350 and 500 by 50, which simplifies it down to 7/10.

\frac{350}{500} = \frac{7}{10}

8 0
3 years ago
Read 2 more answers
Pls help me pls pls pls​
vovikov84 [41]

Answer: 1x + 2y = 4

Step-by-step explanation:

The equation of the line is y = -1/2x + 2.

First, let's make 4 on one side of the equation.  First, bring x to the left.  y + 1/2x = 2.  Then multiply the whole equation by two.  Thus, 1x + 2y = 4.

Hope it helps <3

3 0
3 years ago
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