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4 years ago

Subtract and reduce to lowest terms: 4 1/7 - 2 4/7

Mathematics

1 answer:

tatyana61 [14]4 years ago

5 0

Answer:

Step-by-step explanation:

Both terms have the same denominator, 7. So combining them is relatively easy. Rewrite 2 4/7 as 18/7 and then subtract 18/7 from 1/7:

1/7 - 18/7 = -17/7

Choose Answer 4: None of these are correct.

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A store sells televisions for $360 and DVD burners for $270. The entire stock is worth $52,920 and there are a total of 164 tele

bogdanovich [222]

Answer: 96 Televisions, 68 DVD burners

Step-by-step explanation:

Let T represent the quantity of televisions

Let D represent the quantity of DVD burners

Given:

value of television (T) = 360

value of DVD burners (D) = 270

Total value = 52,920

Equations:

Value: 360T + 270D = 52,920

Quantity: T + D = 164

We can solve the system of equations using the Elimination Method:

-1(360T + 270D = 52,920) → -360T - 270D = -52,920

360(T + D = 164) → 360T + 360D = 59,040

90D = 6,120

÷90 ÷90

D = 68

Input the value of D into one of the equations to solve for T

T + D = 164

T + 68 = 164

T = 96

6 0

3 years ago

What is the slope of the line graphed on the coordinate plane?

pshichka [43]

Slope = rise/run

The rise is 6
The run is 4
6/4 is the slope or in
decimal form

1.5

7 0

4 years ago

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nevsk [136]

C. No, this is not a valid inference because she asked only 35 families

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3 years ago

Last week Jordan had 12 marbles . This week he has 21 marbles what is the percentage of increase in the number of marbles Jordan

Elodia [21]

Answer:

75%

Step-by-step explanation:

The number increase is 9. 9 is what percent of 12? 9 is 75% of 12

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3 years ago

What is (12x+5)+(-10x-3)

kvasek [131]

Answer:

2+2

Step-by-step explanation:

There ya go

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3 years ago

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