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Paladinen [302]

3 years ago

12

Solve the proportion: 4/x = 2/7

2 answers:

4vir4ik [10]3 years ago

7 0

Answer:

x = 14

Step-by-step explanation:

Cross multiply.

7 x 4 = 28.

X x 2 = 2x

2x = 28

x = 14

N76 [4]3 years ago

4 0

Answer:b

Step-by-step explanation:

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10,710 People claimed their water bottle

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1 year ago

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If you assume the samples are representative how many whole wheat bagels might you infer are sold at each store

Alexxandr [17]

Maurine owns three bagel shops. Each shop sells 500 bagels per day. Maureen asks her store managers to use a random sample to see how many whole wheat bagels are sold at each store each day. Shop A has total of 50 bagels in sample and 10 are whole wheat bagels. Store B has a total of 100 bagels in sample and 23 are whole wheat bagels. Shop C has 25 total bagels in sample and 7 are whole wheat bagels.

We find fraction of whole wheat bagels to the sample for each shop using given information

Shop A = $\frac{10}{50} = 0.20$

Shop B = $\frac{23}{100} = 0.23$

Shop C = $\frac{7}{25} = 0.28$

The number of whole wheat bagels for each shop that sells 500 bagels per day

Shop A = $0.20 * 500= 100$

Shop B = $0.23 * 500= 115$

Shop C = $0.28 * 500= 140$

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3 years ago

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Point A is located at -7 on a number line, and point B is located at 3 on the number line. Point C is the same distance away fro

mel-nik [20]

Answer:

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Step-by-step explanation:

3 0

3 years ago

12. Find the value of x, if y = 35 and b = 75.

yKpoI14uk [10]

Answer: 12. Find the value of x, if y = 35 and b = 75.

Step-by-step explanation:

7 0

2 years ago

Pls answer this...its very important for me...i have an exam coming up...and this 2 questions will come up so pls help. I WILL M

tamaranim1 [39]

Answer:

a. x = 3

b. x = 3

Step-by-step explanation:

Given

$\frac{4^{2x}}{4^x} = 64$

$(2^{2x}) = 64$

Required

Find x

Solving $\frac{4^{2x}}{4^x} = 64$

From laws of indices;

$\frac{a^{m}}{a^n} = a^{m-n}$

So;

$4^{2x-x} = 64$

$4^{x} = 64$

Write 64 in base of 4

$4^{x} = 4^3$

From laws of indices;

$if\ x^a = x^b;\ then\ a = b$

So; x = 3

Solving $(2^{2x}) = 64$

Write 64 as a base of 2

$(2^{2x}) = 2^6$

$if\ x^a = x^b;\ then\ a = b$

$2x = 6$

Divide both sides by 2

$\frac{2x}{2} = \frac{6}{2}$

$x = 3$

3 0

3 years ago