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igomit [66]
3 years ago
13

Find x if: 1/10 of x is 15

Mathematics
1 answer:
Sauron [17]3 years ago
7 0
\frac{1}{10} x = 15

Multiply by 10 by both sides:

x = 15 \times 10
x = 150
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5 years ago, my grandfather was five times as old as I was. Three years from now, my grandfather will be three times as old as I
balu736 [363]
<h3>Answer:</h3>

13 years old

<h3>Explanation:</h3>

Let g and m represent grandfather's age now and my age now. The relation 5 years ago was ...

... g -5 = 5(m -5)

The relation in 3 years will be ...

... g +3 = 3(m +3)

Subtracting the first equation from the second, we get ...

... 8 = -2m +34

... 2m = 26 . . . . . add 2m-8

... m = 13

My age now is 13.

4 0
3 years ago
Read 2 more answers
Previously 5% of mothers smoked more than 21 cigarettes during their pregnancy. An obstetrician believes that the percentage of
mr Goodwill [35]

Answer:

p value = 0.03514

Step-by-step explanation:

Hypotheses would be

H_0: p = 0.05\\H_a: p

(left tailed test at 10% level of significance)

Here p stands for the sample proportion of mothers smoked more than 21 cigarettes during their pregnancy.

Sample size =130

persons who smoked = 2

Sample proportion = \frac{2}{130} \\=0.0154

Assuming H0 to be true

Std error= \sqrt{0.05*0.95/130} \\=0.01911

p difference = -0.0346

Test statistic z=-1.81

p value = 0.03514

Since p is less than 0.10, significance level, we reject H0

4 0
3 years ago
a store sells mugs each mug costs the same amount during a sale the store reduces the price of each mug by 1.25 jackson spends 1
seropon [69]

Answer: the Answer is $14.73

Step-by-step explanation: that how you sell a mug

5 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Cbold%7B%20Find%5C%3A%20the%20%5C%3Avalue%5C%3A%20of%5C%3A%20x%3A%7D" id="TexFormula1" title
Andrews [41]

Answer:

hope this helps you!!!

Step-by-step explanation:

MARK AS BRAINLIEST!!

8 0
3 years ago
Read 2 more answers
Simplify 2/3 (9x - 6)<br> A) 3x – 2<br> B) 6x – 4<br> C) 12x – 8<br> D) 18x – 12
Naily [24]
2/3 (9x - 6)

=2/3(9x) - 2/3(6)
= 6x - 4
answer
B) 6x – 4
8 0
3 years ago
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