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3 years ago

Need help on both for homework this makes no sense....

Mathematics

2 answers:

victus00 [196]3 years ago

8 0

Answer: 1. 219.5

Im not too sure for the second one sorry

Step-by-step explanation:

hichkok12 [17]3 years ago

7 0

Answer:

219.5

18.75

Step-by-step explanation:

200 * 1.0975 = 219.5

125 * 0.15 = 18.75

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The area of a playground is 20 square yards. The length of the playground is 5 times longer than its width. Find the length and

jok3333 [9.3K]

The answer is <span>length = 10 yd, width = 2 yd
proof
</span><span>The length of the playground is 5 times longer than its width, it means
l=5w, but 10= 2x5 so we can write l= 5w,
and Area = 20 =l x w = (5x2) x 2 =20</span>

6 0

4 years ago

if ZA and ZB are supplementary angles. if mZA = (3x-23) and mZB= (2x-12) then find the measure of ZB

Brilliant_brown [7]

Answer:

mZB= 74

Step-by-step explanation:

ZB+ZA=180

3X-23+2X-12=180

5X-35=180

5X=180+35

5X=215 (then divide both sides by 5 to x be left alone.)

X=43....so ZB=2(43)-12

=86-12=74

3 0

3 years ago

16+10/5-3*2=12 true or false.

Zina [86]

We need to follow the order of operations to get this one right.
16 + (10/5) - (3*2)
16 + (2) - (6)
16 + 2 - 6
18 - 6
12<em /><em>. </em>Your answer is true!

6 0

4 years ago

If my mother has 5 boys and my father has 4 girls, what is the probability of one being a boy?

Marrrta [24]

Answer:

5/9

Step-by-step explanation:

4+5=9 and there are 5 boys

3 0

2 years ago

Find the difference. Enter your answer in lowest terms in the box below as a

lara [203]

Answer:

76/165

Step-by-step explanation:

The difference of fractions can be found using the formula ...

a/b -c/d = (ad -bc)/(bd)

<h3>Difference</h3>

Using the given values in the formula, we have ...

$\dfrac{8}{11}-\dfrac{4}{15}=\dfrac{8(15)-11(4)}{11\cdot15}=\dfrac{120-44}{165}=\boxed{\dfrac{76}{165}}$

Here, the difference fraction does not need to be reduced. Many calculators and spreadsheets can do this arithmetic for you.

The above formula can also be used for sums of fractions. In that case, the sign changes from minus to plus.

7 0

2 years ago