Ask question

Ask question

All categories

2 years ago

12

From 1940 to 1980, the consumer price index (CPI) increased from 28.6 to 89.4. If a gallon of milk cost $0.75 in 1940 and the pr

ice of milk increased at the same rate as the CPI from 1940 to 1980, approximately how much did a gallon of milk cost in 1980?

1 answer:

devlian [24]2 years ago

5 0

28.6 / 89.4 = 0.75 / x
cross multiply
28.6x = 67.05
x = 67.05 / 28.6
x = 2.34 <==

You might be interested in

Consider the one-sided confidence interval expressions for the mean of a normal population. Round your answers to 2 decimal plac

ser-zykov [4K]

Answer: a) 0.84 b) 0.67 c) 1.28

Step-by-step explanation:

Using the standard normal distribution table for z-value , we have

(a) The value of $z_{\alpha}$ would result in a 80% one-sided confidence interval : $z_{(1-0.80)}=z_{0.20}=0.8416\approx0.84$

(b) The value of $z_{\alpha}$ would result in a 85% one-sided confidence interval : $z_{(1-0.85)}=z_{0.25}=0.6744897\approx0.67$

(c) The value of $z_{\alpha}$ would result in a 90% one-sided confidence interval : $z_{(1-0.90)}=z_{0.10}=1.2815515\approx1.28$

6 0

3 years ago

Which expression is equal to p + (q + r)?

Svetach [21]

The answer should be a) (p+q)*r

7 0

2 years ago

you need to fill a water jug with 8.23 L. you filled it with 2.92 L and then added 3.14 more how much more water do you need?

dalvyx [7]

Find out how much you filled.

2.92 + 3.14 = 6.06 L

Find the remaining.

8.23 L - 6.06 L = 2.17 L

You need 2.17 L more to fill the water jug

7 0

2 years ago

4.5/18 = x/100 <br> What is x?

USPshnik [31]

Answer:
x=25

Explanation:
Using the method of cross multiplication and division set up like so,
(100•4.5)/18 will give you 25.
4.5•100=450
450/18=25

5 0

2 years ago

1) A part of an expression separated by addition, subtraction, or an equality symbol is a

Oksanka [162]

Algebraic expression

8 0

3 years ago