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3 years ago

1. In the expression 73 – 4 • 3 + 8, the first operation is (1 point)

1 answer:

7 0

I'm not sure by the way you layed out the question but, 2. 5(14-23)+8/2. First you have to use distributive method so 5 times 14 equals 70 and 5 times 23 equals 115 so that means it's 70-115+8/2. Then 8/2 equals 4 so 70-115+4 so then 70-115 equals negative 35. That is -35+4 so the answer is -31 or in other words negative thirty one.

I am not sure if I helped out but I tried my best

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If a laptop is $799.99 and is 13% off how much is the laptop after the discount

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Answer:

695.9913

Step-by-step explanation:

13% off of 799.99 is 695.9913

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3 years ago

If the sum of two numbers is 20 and one of those numbers is three times the other, what is the smaller number?

Mazyrski [523]

X = smaller number
y = bigger number

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4 years ago

If john run 2.5 miles everyday, how many miles will he run in a month of 30?

Lapatulllka [165]

Answer:

2,250 miles per day.

Step-by-step explanation:

John runs 2.5 miles per day. In a period of 30 months, you can averagely take 30 days in each month.

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To find the number of miles ran in 900 days,

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Hope this helps.

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3 years ago

A class of sixty voted for class president. 30% voted for Brad and 70% voted for Jane. How many votes did the winner get ?

Lynna [10]

Answer:

Step-by-step explanation:

"The Winner." who is Jane, with 70% of the votes, received:

70% of 60 votes

The word "of" usually means multiply.

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Let's use (70/100):

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3 years ago

Read 2 more answers

The following chart shows the number of rows in an auditorium and the total number of seats. What equation defines the number of

Anastaziya [24]

Answer:

<em>Answer: c) S=20R+60</em>

Step-by-step explanation:

<u>Linear Model</u>

The chart supplied shows the number of rows (R) in an auditorium and the total of seats (S).

We'll find the equation that relates them. The equation of a line can be expressed in the slope-intercept form:

S = mR + b

Where m is the slope and b is the intercept.

The slope is found by:

$\displaystyle m=\frac{S_2-S_1}{R_2-R_1}$

We'll use two sample points (20,460) and (45,960):

$\displaystyle m=\frac{960-460}{45-20}=\frac{500}{25}$

m = 20

The value of b can be found by using one of the points, for example (20,460), and having m=20:

460 = 20*20 + b

Thus: b = 460 - 400 = 60.

The equation is:

S = 20R + 60

You can test the other points and check they belong to the same line.

Answer: c) S=20R+60

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3 years ago