All categories

2 years ago

Andrew had 30 dollars to spend on 3 gifts. He spent 8

Mathematics

1 answer:

amm18122 years ago

8 0

Andrew has 17 dollars left for gift c

You might be interested in

If 10 pounds of sugar cost $18.54, how much will 15 pounds of sugar cost?

emmainna [20.7K]

15 pounds of Sugar will cost $27.81.
18.54/2=9.27. 9.27*3=27.81. So your total answer would be $27.81.

5 0

2 years ago

Read 2 more answers

Which ratios form a proportion?

Nat2105 [25]

Your answer would be, C 5/45 and 4/36. In simplified form they both equal 1/9, meaning they are a proportion.

3 0

2 years ago

What is the expanded form of 5³?

Aleksandr [31]

5 x 5 x 5
Expanded just means writing it out as you would solve it. So solving a cube would be multiplying the number by itself 3 times

6 0

2 years ago

Read 2 more answers

In a certain city of several million people, 7.7% of the adults are unemployed. If a random sample of 300 adults in this city is

Lilit [14]

Answer: 0.2643

Step-by-step explanation:

Given : The proportion of adults are unemployed : p=0.077

The sample size = 300

By suing normal approximation to the binomial , we have

$\mu=np=300\times0.077=23.1$

$\sigma=\sqrt{np(1-p)}=\sqrt{300\times0.077(1-0.077)}\\\\=4.61749932323\approx4.62$

Now, using formula $z=\dfrac{x-\mu}{\sigma}$ , the z-value corresponding to 26 will be :-

$z=\dfrac{26-23.1}{4.62}\approx0.63$

Using standard distribution table for z , we have

P-value= $P(z\geq0.63)=1-P(z$

$=1-0.7356527=0.2643473\approx0.2643$

Hence, the probability that at least 26 in the sample are unemployed =0.2643

6 0

2 years ago

12) g = xy/c , for x

Paladinen [302]

Answer:

c=xy/g happy to help ya:)

Step-by-step explanation:

6 0

2 years ago