3 years ago

9 is 12% of which number

Mathematics

1 answer:

dolphi86 [110]3 years ago

7 0

75 because
9 = .12x
9/.12 = 75

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Korolek [52]

Answer:

2x+2x is 4 +3x is 12+ 1 is 13 + 3 is 15 - 2 is 13 -1 is 12

so x=15

and y=12

7 0

3 years ago

Figure B is a scaled copy of Figure A. What is the scale factor from Figure A to Figure B?

ElenaW [278]

Answer:

scale factor = $\frac{1}{3}$

Step-by-step explanation:

Compare the ratio of corresponding sides, image to original.

scale factor = $\frac{3}{9}$ = $\frac{1}{3}$

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3 years ago

Y=1/2×-16 y=-2/3×+12 what is value of x ?

larisa86 [58]

Answer:

Is equal 54

Step-by-step explanation:

6 0

4 years ago

Can 8/45 be simplified?

AleksandrR [38]

8/45 is already in simplest form because it has NO common denominator to divide both, the numerator and the denominator with. So no, 8/45 cannot be simplified. <span />

8 0

3 years ago

Read 2 more answers

If stratified random sampling with proportional allocation is used to select a sample of 25 high schools, how many would be sel

gregori [183]

Answer:

02 High Schools would be selected from the stratum with a percent-free-lunch value of 40 less than or equals x.

Step-by-step explanation:

As the sample size needed is 25 and total schools are 100 so this indicate 1 school in each 4 schools is to be selected. This is given as

$n=\frac{n_{total}}{n_{sample}}\\n=\frac{100}{25}\\n=4$

Now as the schools with percent free lunch are 8 so now

$n=\frac{n_{total}}{n_{sample}}\\n=\frac{8}{2}\\n=2$

So only 2 schools will be selected in this regard.

7 0

3 years ago