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3 years ago

Which expression is a SUM? A) 5(2 + 3) B) 8 x (6 + 3) C) 5(2) + 2(6 ÷ 3) D) (5 + 2) ÷ (2 + 3)

1 answer:

8 0

Consider the order of operations. When the last operation to be performed is addition or subtraction, the expression is a sum. The appropriate choice is
C) 5(2) + 2(6 ÷ 3)

_____
This is evaluated as
10 + 2·2
10 + 4 . . . . . . . the last operation to be performed is addition

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A group of 20 people visited Anglesey for a weekend break.

morpeh [17]

Answer:

A = 4, B = 3, C = 7, D = 6

Step-by-step explanation:

A = 4 because A represents the number of people who didn't visit either place. This means that B + C + D = 20 - 4 = 16. To find C, which is the overlap we can do 10 + 13 - 16 = 7 so C = 7 which means B = 10 - 7 = 3 and D = 13 - 7 = 6.

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4 years ago

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A batch of cookies requires 1 1/2 cups of sugar. How many batches can Tu make with 7 1/2 cups of sugar?

Korvikt [17]

You would subtract 1 1/2 from 7 1/2 so the answer would be 6 hope I helped

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3 years ago

Mailyn loves cookies. She can eat 32 in an hour. Her brother Juan, however, needs 3 hours to eat the same amount of cookies. How

bezimeni [28]

we know that

1) Mailyn can eat 32 cookies in an hour

1 hour is equal to 60 minutes

Find how cookies eats Mailyn in one minute

by proportion

$\frac{32}{60} \frac{cookies}{minutes}= \frac{x}{1} \frac{cookie}{minutes} \\\\ x=32/60\\x=0.53 \ cookies$

2) Juan needs 3 hours to eat 32 cookies

Find how cookies eats Juan in one minute

by proportion

$\frac{32}{180} \frac{cookies}{minutes}= \frac{x}{1} \frac{cookie}{minutes} \\\\x=32/180 \\x=0.18\ cookies$

3) Find how long will it take them to eat 40 cookies together

we know that

Maylin and Juan eats in one minute together ---------> (0.53+0.18)=0.71 cookies

by proportion

$\frac{0.71}{1} \frac{cookies}{minutes}= \frac{40}{x} \frac{cookie}{minutes} \\\\0.71*x=40\\x=56.34 \ minutes$

therefore

the answer is

$56.34\ minutes$

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3 years ago

Ashley is in the ocean 30 degrees below sea level while Jackson is 45 above sea level. What is the distance between their elevat

wolverine [178]

The answer is 15 if you don’t have it already dis thing ain showing no date

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3 years ago

Write the monomial in its standard form. Name its coefficient and

Degger [83]

Answer:

A monomial in standard form is (essentially) the product of one or more factors: a constant coefficient and one factor for each variable in the expression.

Step-by-step explanation:

For example, in the monomial 4x2y3, the factors are 4, x2, and y3. First, the coefficient is 4. The next factor, x2, is the x-factor, whose degree is 2.

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3 years ago