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iVinArrow [24]
4 years ago
10

Ned calculated 17 divided by 4=4.25.Use estimation to see if her answer is reasonable.How con you use multiplication to check hi

s answer?
Mathematics
1 answer:
yanalaym [24]4 years ago
8 0
Do 4.25x4 and if it equals 17 he is correct, otherwise he is incorrect
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Simplify. What is your answer 8x + 9d + 3x -5d
BlackZzzverrR [31]

Answer:

11x + 4d

Step-by-step explanation:

8x + 9d + 3x -5d

To simplify this we have to group them by their like terms i.e.

= 8x + 3x + 9d - 5d

= 11x + 4d

Mark  brainliest

7 0
4 years ago
At the coffee shop, two coffees and one latte cost $10.50. Three coffees and two lattes cost $17.00. What is the cost of one cof
EastWind [94]

To solve this problem, we can set two equations.

Let x be the cost of coffee and y be the cost of latte.

Two coffees and one latte: 2x + y = 10.50

y=10.50 - 2x ...(1)

Three coffees and two lattes: 3x + 2y = 17.00...(2)

Put (1) into (2), we have:

3x + 2(10.50-2x) = 17.00

3x + 2(10.50) - 2(2x) = 17.00

3x + 21 - 4x = 17

Put the unknown to one side:

3x -4x = 17 - 21

-x = -4

When there are negative numbers on both sides, we can take the negative signs away:

x= 4

Therefore, cost of one coffee is A. $4.00.

Hope ot helps!

3 0
4 years ago
Solve the inequality. 3 divided by 10 is greater than or equal to k minus the quantity 3 divided by 5 end of quantity
Mariana [72]

Inequality:

(3/10) ≥ k - (3/5)

Add 3/5 to both sides:

k ≤ (3/10) + (3/5)

Use LCD:

k ≤ (3/10) + (6/10)

Combine:

k ≤ 9/10
8 0
3 years ago
What is the perimeter 5 3/4 and 2 1/3
soldi70 [24.7K]
16 2/12 

I hope this helps :)
6 0
4 years ago
Ivan drove 871 miles in 13 hours. At the same rate how many miles will he drive in 9 hours( HELP)
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Step-by-step explanation:

speed = distance/time

speed = 871÷13

speed = 67 mph

distance = speed x time

distance = 67mph X 9hrs

distance = 603 m

7 0
3 years ago
Read 2 more answers
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