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goldenfox [79]
3 years ago
13

Solve for x.

Mathematics
1 answer:
alexandr402 [8]3 years ago
7 0

this is how i calculated for x!

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Haley got a 93% on her first math test and an 86% on her second test. What is her percent decrease from test 1 to test 2 to the
zhenek [66]

Haley’s Percentage Decrease from Test 1 to Test 2 to the nearest tenth is 7.5%

Nearest tenth can be defined as , Look at the hundredth number to round the decimal number to the nearest tenth. If it's more than 5, add one to the tenth value. Remove all the numbers that are present after the tenth place and leave the tenth place value alone if it is less than 5

Given that,

Haley’s Percent score in Test 1 = 93 %

Haley’s Percent score in Test 2 = 86%

Formula For calculating the Percentage Decrease is :

(Beginning Percentage – Final Percentage) / Beginning Percentage * 100

So, by using this formula we can calculate the percentage decrease of Haley’s Test

Percentage Decrease = (93% - 86%)/93% * 100

                 = 7.5%

To know more about Percentage Decrease, Click here :

brainly.com/question/14808025

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8 0
2 years ago
Question 1<br> Solve the equation:<br> 2z - 1 = -15<br> x=<br> Blank 1:
charle [14.2K]

Answer:

<h2>z = - 7</h2>

Step-by-step explanation:

2z - 1 =  - 15

<u>Move -1 to the right side of the equation</u>

2z =  - 15 + 1 \\ 2z =  - 14

<u>Divide both sides by 2</u>

\frac{2z}{2}  =  -  \frac{14}{2}  \\

We have the final answer as

<h3>z = - 7</h3>

Hope this helps you

3 0
3 years ago
Find the total surface area of the cone in the figure. ( use rr=3.14.)
nikitadnepr [17]

Answer:

Answer D

Step-by-step explanation:

The formula is A = pi r(r+\sqrt{h^2+r^2}). We have our r (radius) and h (height), so plugging it all in would give us A = (3.14)(5 + sqrt(12^2)+(5^2). After computing this, you would get answer D, 282.6.

4 0
3 years ago
Jessie has been training for a half-marathon. Jesse trains on a track where each lap is 1/4 of a mile. If Jesse ran 3 1/7 miles,
NISA [10]

Answer:

14.2

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
(2x-*y-6)-(-7x*y-2)<br> Multiply then simplify
ladessa [460]

Answer:

62652

Step-by-step explanation:

15553

7 0
4 years ago
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