3 years ago

Which symbol can be placed in the box to make this number sentence true?64 (13 – 5) + 8 = 16

Mathematics

1 answer:

Mkey [24]3 years ago

5 0

Where would the box go?

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A train is pulling 23 red cars and 36 blue cars. Each car has 32 boxes of freight. Which is the best estimate for the number of

Len [333]

So the train is pulling about 50 cars in total, and there's about 30 boxes of freight in each car.

30 x 50 = 1500

The best estimate would be near 1500 boxes of freight through the whole train.

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3 years ago

3x + y - z= -6<br> 2x - y + 2z = 8<br> 4x + y - 3z = -21

Flauer [41]

Answer:

x=-1

y=4

z=7

Step-by-step explanation:

3x + y - z= -6(1)

2x - y + 2z = 8(2)

4x + y - 3z = -21(3)

(1)+(2): 5x+z=2(4)

(2)+(3): 6x-z=-13(5)

(4)+(5): 11x=-11

x=-1

so z=2-5x=7

y=-6-3x+z=4

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3 years ago

HELP ASAP. The length of the rectangle is five centimeters is less than twice it’s width. The perimeter of the rectangle is 26 c

TiliK225 [7]

Answer:

L = 7, W = 6

Step-by-step explanation:

All I did was I wrote out the equations, L = 2w - 5 and 2L + 2W = 26. I then substituted what L was into the equation and solves. Here's my work if you would like to see it.

8 0

3 years ago

What is a linear equation for the cost of a cell phone that is $549.99 that has a 30 month installment plan?

erica [24]

Y = mx + b

y = 30x + $549.99

7 0

3 years ago

Can someone please answer it correctly if it’s correct I will mark you brainliest

dem82 [27]

Answer:

$-\frac{5}{2}, -2, 1.7$

Step-by-step explanation:

1. Make fraction to decimal

$-\frac{5}{2} = -2.5$

2. Order from least to greatest.

1.7 > -2 > -2.5

Least to greatest : $-\frac{5}{2}, -2, 1.7$

4 0

3 years ago