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leva [86]
3 years ago
15

Solve for A. -7a + 1.6a = -19.44 Please show work.

Mathematics
1 answer:
Taya2010 [7]3 years ago
3 0

Answer:

3.6

Step-by-step explanation:

-7a+1.6a=-19.44

-5.4a=-19.44

5.4a=19.44

a=19.44/5.4

a=3.6

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What is 9.52 rounded to the nearest tenth?
Serhud [2]

Answer:

9.5

Step-by-step explanation:

When rounding to the nearest tenth, check to see what the hundredths place value is.

If it is 0.05 or greater, we will round the tenths place up one.

If not, the tenths place will remain the same.

Since 9.52 has a hundredths place value of 0.02, we will keep the same tenths place value.

So, the correct answer is 9.5

8 0
3 years ago
If f(x) =5x-1 , then f(3)=
stich3 [128]
\text{If f(x) =5x-1 , then f(3)=
} \\\\ f(3)=5 \cdot 3 -1 \\ f(3)=15-1 \\ f(3)=14
8 0
3 years ago
Someone please solve. I keep getting 66 but it's wrong.​
sashaice [31]

The unlabeled part of the right angle is complementary to 68 degrees, so 22 degrees. y is supplementary to 78 degrees, so 102 degrees.  z as the third angle in the small triangle is 180 less than the sum of the other two,

z = 180 - 22 - 102

Answer: 56 degrees

7 0
3 years ago
Read 2 more answers
A roofing company claims they can haul away 755.2 hectograms of shingles every 90 minutes for trash. If they worked for 39 hours
Marina CMI [18]
<h2><u>Answer:</u></h2>

The roofing company can take out <u>196.352kg</u> of shingles.

<h2><u>Step-by-step explanation:</u></h2>
  • First, work out how many 90 minutes are in 39 hours:

       39 x 60 = 2340 minutes total

       2340 ÷ 90 = <u>26</u>

  • Then, multiply this by 755.2 to work out how much hectograms of trash is taken out.

       26 x 755.2 = <u>19635.2 hectograms of trash</u>

  • Finally, divide this by 10 to work out how many kilograms this is:

        19635.2 ÷ 10 = <u>196.352kg</u>

8 0
3 years ago
Help me get this answer please
Elena L [17]

Answer:

First, we find how many red beads there are:

2 + 1 + 3 = 6

12 - 6 = 6

Red beads = 6

Now we add the red beads and the purple beads:

Purple beads = 3

Red beads = 6

3 + 6 = 9

9/12 = 3/4

Hope this helps!

7 0
4 years ago
Read 2 more answers
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