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2 years ago

- Use the order of operations to simplify 4(3.5 - 1.5) -

Mathematics

2 answers:

Law Incorporation [45]2 years ago

7 0

Answer:

Step-by-step explanation:

We use PEMDAS to solve:

4(3.5-1.5)- solve the parenthesis first (P)
4(2)-0 there are not exponents so we go into multiplication
8-0 Solve the subtractions (S)
8

irinina [24]2 years ago

6 0

Answer:

When simplified this equation equals 8.

Step-by-step explanation:

Let me show you my work.

4 ( 3.5 - 1.5 ) = 4 ( 2 )

4 ( 2 ) = 8 because 4 times 2 = 8

Hope this helps. . .

UwU

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Solve for x in the equation (x + 7) (x minus 9) = 25

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Answer:

10.43398113

Step-by-step explanation:

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2 years ago

Charles bought 7/8 foot of electrical wire and 5/6 foot of copper wire for his science project .What is the least common denomin

coldgirl [10]

Answer:

The least common denominator of the fractions is 24

Step-by-step explanation:

we know that

The <u>least common denominator</u> (LCD) is the smallest number that can be a common denominator for a set of fractions

we have

7/8

Multiples of 8 -------> 8,16,24,32,...

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Multiples of 6 -------> 6,12,18,24,...

24 is a common multiple of 6 and 8. It is their lowest common multiple

<em>Alternative Method</em>

we have

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3 years ago

I don’t know if I should put the parentheses around the number 4 or not

tresset_1 [31]

Answer:

you only put a parenthesis around a number if it is negative

Step-by-step explanation:

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3 years ago

4.1 Unit Rates

fiasKO [112]

Answer: 17.5

Step-by-step explanation:

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2 years ago

The quadratic function y = –10x2 + 160x – 430 models a store’s daily profit (y) for selling a T-shirt priced at x dollars. What

asambeis [7]

Answer:

x = 4 or x = 12

Step-by-step explanation:

Given:

y = -10x² + 160x - 430

When y = $50

50 = -10x² + 160x - 430

50 + 430 = -10x² + 160x

480 = -10x² + 160x

-10x² + 160x - 480 = 0

Divide through by -10

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Solve the quadratic equation using factorization method

+48 = -12 × -4

-16 = -12 -4

Therefore,

-12 and -4 are both factors

x² - 16x + 48 = 0

(x - 4 )(x - 12 ) = 0

x - 4 = 0

x = 4

x - 12 = 0

x = 12

6 0

3 years ago