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3 years ago

11

QUICK HELP!!! Daniel guesses that he scored a 95 on his science test. His actual score is 91. What is the percent error in Danie

ls guess? Round your answer to the nearest tenth of a percent.

2 answers:

bija089 [108]3 years ago

8 0

The answer is %0.8635 hope this helps

deff fn [24]3 years ago

6 0

Answer:

4.4%

Step-by-step explanation:

Because I took the test!

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3 years ago

When an integer is subtracted from 8 times the next consecutive integer, the difference is -20. Find the value of the lesser int

Assoli18 [71]

Answer: -4

Step-by-step explanation:

Let the integer be x.

$8(x+1)-x=-20\\\\8x+8-x=-20\\\\7x+8=-20\\\\7x=-28\\\\x=-4$

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1 year ago

Solve the proportion <br> 7/5=x/3

kumpel [21]

Start with

$\dfrac{7}{5}=\dfrac{x}{3}$

Multiply both sides by 3:

$\dfrac{21}{5}=x$

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3 years ago

Read 2 more answers

I did 3 over 7 then 8 over x. I'm getting decimals. ‍♀️

julia-pushkina [17]

Answer:

The length of side <em>b</em> is 9.

Step-by-step explanation:

Triangles are similar if they have the same shape, but can be different sizes.

When two figures are similar, the ratios of the lengths of their corresponding sides are equal.

If you know that two objects are similar, you can use proportions and cross products to find the length of an unknown side. We know that the triangle $ABC$ is similar to the triangle $XYZ$ . Therefore the following relation must be true:

$\frac{AB}{AC} =\frac{XY}{XZ}$

We know that side $AB$ is equal to 8, side $AC$ is equal to <em>b, </em>side $XY$ is equal to $2\frac{2}{3}$ , and side $XZ$ is equal to 3.

Substituting these values into the above relation and solving for <em>b</em> we get that:

$\frac{8}{b} =\frac{2\frac{2}{3} }{3}\\\\\mathrm{Convert\:mixed\:numbers\:to\:improper\:fractions}:\quad 2\frac{2}{3}=\frac{8}{3}\\\\\frac{8}{b}=\frac{\frac{8}{3}}{3}\\\\8\cdot \:3=b\frac{8}{3}\\\\24=b\frac{8}{3}\\\\8b=72\\\\b=9$

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3 years ago