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3 years ago

Give one example of when you would use the friendly numbers strategy to subtract. Explain why.

Mathematics

2 answers:

Harman [31]3 years ago

8 0

U can also use agarothim strategy

ziro4ka [17]3 years ago

6 0

In the addition process this usually involves:

rounding numbers up to the nearest multiple of 10 or 100 subtracting the extras that were added at the end.

In the subtraction process this usually involves subtracting too much and completing the calculation by putting some back.

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In a class, 60% of the students are boys and the rest are girls. If the number of boys is 30, how many students are there?

irga5000 [103]

50 total students

20 girls

Explanation:

total students: 100%

----------------

60% → 30

1% → 30/60

1% → 0.5

100% → (0.5 * 100)

100% → 50

number of girls:

total students - number of boys

50 - 30

5 0

2 years ago

Danny buys 4 pizzas and some pretzels for his baseball team. The cost of each pizza is $8.99, and the cost of each pretzel is $0

Luba_88 [7]

Answer:

Step-by-step explanation: The answer to your question is 15 pretzels.To figure this out, you first multiply 8.99 by 4 since he did buy 4 pizzas and each pizza is 8.99. Then once you do that, you should come up with 35.96. Then subtract 50.81 from 35.96,which should give you 14.85. Then just divide 14.85 by 0.99 to figure out the amount of pretzels he bought.It should give you 15.Hope this helps!!!!

Please give brainliest!!!☺

4 0

3 years ago

Read 2 more answers

A sample of 260 students enrolled at a university were asked what they intended to do after graduation. The results are shown be

vovikov84 [41]

ANSWER

$30\%$

EXPLANATION

The total number of students can be calculated by adding all the frequencies.

From the graph the total frequency is,

$39+117+78+26 =260$

The number of students who intend to go into state or local government after graduation is 78.

The percentage of students who intend to go into state or local government after graduation

$= \frac{78}{260} \times 100\%$

$= \frac{3}{10} \times 100\%$

$= 30\%$

4 0

3 years ago

Read 2 more answers

1. Calculate the simple interest over an amount of N$ 2500 that is invested for 3 years and 6 months at a rate of 7% pa.

Umnica [9.8K]

Answer:

N$ 612.5

Step by step explaination:

Given,

Principal or'P'=N$2500

Time or'n'=3 years & 6 months or 3.5 years

Rate of profit or 'r'=7% or 7/100

Profit or 'I'=?

_____________________________________

We know,

I=P*n*r

I=2500*3.5*7/100

I=612.5

So,simple interest is N$ 612.5.

3 0

3 years ago

CAN SOMEONE PLEASE HELP ME???

AleksandrR [38]

Answer: The answer is 5.6d+ 2.1

Step-by-step explanation:

Add then subtract then add then multiply then subtract then divide.

5 0

3 years ago

Read 2 more answers