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3 years ago

Monica deposits $100 into a savings account that pays a simple interest rate of 3.8%. Paul

Mathematics

2 answers:

Gnom [1K]3 years ago

7 0

Answer:

Paul

Step-by-step explanation:

Paul earn more than monica. Though he is getting less interest but because of his higher initial amount he is getting more return.

Computing the return of both

Monica return is 100*3.4%= $3.4 in a year

Paul return is 200*%2.2= $4.4 in a year.

diamong [38]3 years ago

3 0

Answer:

3.3

multiply all the number in pairs then you have to add both number 3.3

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Number 20 pls I need help with this one

Norma-Jean [14]

He uses 5/8 tanks of gas in one week.

In 5 he will use, 5/8 *5 = 25/8 in 5 weeks
This can be simplified too:
3.125 tanks of gas

The answer is, 25/8 tanks of gas or 3.125 tanks of gas

3 0

3 years ago

In the U.S., 95% of children have received their DTaP vaccine. Calculate the probability that fewer than 700 out of a sample of

Studentka2010 [4]

Answer:

0.0183

Step-by-step explanation:

The percentage of students, who received their DTaP vaccine is 95%.

This implies that:

$p = 0.95$

and

$q = 1 - 0.95 = 0.05$

The standard deviation of the proportion is

$= \sqrt{ \frac{pq}{n} }$

$= \sqrt{ \frac{0.95 \times 0.05}{750} } \\ = 0.00796$

We want to find the probability, that the sample proportion,

$\hat p \leqslant \frac{700}{750} \\ \hat p \leqslant 0.9 \bar3$

$P(\hat p\le0.9\bar3)=P(Z\le \frac{0.9 \bar3 - 0.95 }{0.00796} ) \\ = P(Z\le - 2.09) \\ = 0.0183$

5 0

3 years ago

Caitlin has 4 3/4 pounds of clay . She uses 1 1/10 pounds to make a cup ,and another 2 pounds to make a jar , how many pounds ar

Brut [27]

There are 33/20 or 1.65 pounds left.

Given:
4 3/4 pounds of clay
1 1/10 pounds of clay for a cup
2 pounds of clay for a jar

Convert the mixed fraction into fractions.
4 3/4 = (4*4+3)/4 = 19/4
1 1/10 = (1*10+1)/10 = 11/10
2 = 2/1

19/4 - 11/10 = (19/4 *5/5) - (11/10 * 2/2) = 95/20 - 22/20
= (95-22)/20 = 73/20 or 3.65 pounds after making a cup

73/20 - 2/1 = 73/20 - (2/1 * 20/20) = 73/20 - 40/20 = 73 - 40 / 20 = 33/20 OR 1.65 pounds left after making a jar.

We can also convert the fractions into decimal numbers.
19/4 = 4.75
11/10 = 1.10
2/1 = 2.00

4.75 - 1.1 - 2 = 1.65 pounds left.

5 0

3 years ago

Juan is saving money to buy a game. So far he has saved ,$12 which is three-fourths of the total cost of the game. How much does

REY [17]

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answer: 16

how? 100/4 = 25
3/4 = 0.75 because 25 x 3 = 0.75
0.75x = 12
12/0.75 = 16

3 0

3 years ago

Colm and Gaz share some sweets in the ratio 4:3 <br> If Colm gets 28 sweets how many does Gaz get?

liubo4ka [24]

Answer:

21 sweets

Step-by-step explanation:

Colm : Gaz

4 : 3

4 units = 28

1 unit = 28 ÷ 4 = 7

3 units = 7 x 3 = 21 sweets

8 0

3 years ago