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2 years ago

Add 3.2+(-0.8) Plot the first addend and the sum on the number. where do I plot them.??

Mathematics

1 answer:

katrin2010 [14]2 years ago

4 0

The answer to this problem is 2.4.

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a machine makes 5 buttons at a time. each doll shirt gets 5 buttons.how many doll shirts can be finished with 5 buttons?

vivado [14]

If the machine makes 5 buttons at a time,and each doll gets 5 buttons then one doll is the answer

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3 years ago

Find the measure of

Sonbull [250]

Answer: 77°

Step-by-step explanation:

First we are going to find x and then insert it in 18x +5 to be able to get our <WZX

But to find x, we will have to apply the the exterior angle theorem

The exterior angle theorem state that : the exterior angle is equal to the sum of the two opposite interior anges

Using this theorem, then from the diagram above ;

18x + 5 = 48 + 8x - 3

we collect like term

18x - 8x = 48-3-5

10x = 40

Divide bothside by 10

10x/10 = 40/10

x = 4

but <WZX = 18x + 5

Then we substitute x=4

<WZX = 18(4) + 5

<WZX = 72 +5

<WZX =77

Therefore the measure of <WZX is 77°

8 0

3 years ago

Put one half two fifths and six tenths in order from least to greatest.

Citrus2011 [14]

Six tenths, one half, two fifths

6 0

3 years ago

Read 2 more answers

Please help Explanation will be appreciated thanks,

Genrish500 [490]

Answer: A; 6.3%

Step-by-step explanation:

Problem 1

For the first problem, we first want to find y so that we can plug it into the expression.

We can use elimination method for the system of equations to solve.

3x+3y=21

3x-y=5

We subtract both equations to eliminate x.

4y=16 [divide both sides by 4]

y=4

Now that we know y, we can plug it into the expression.

$\frac{4}{2} -3$ [divide]

$2-3$ [subtract]

$-1$

We know that the answer is A.

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Problem 2

For the second problem, we need to know how to calculate percent error. The formula for precent error is $\frac{|measured-exact|}{exact} *100%$ . We know that the exact value is 80 because the buyer was supposed to given 80. 75 is the measured value because that was what the buyer was given.