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siniylev [52]
3 years ago
7

A machine produces 440 bolts in 48 minutes. At the same rate, how many bolts would be produced in 30 minutes?

Mathematics
1 answer:
saveliy_v [14]3 years ago
3 0
The units you want is \frac{bolts}{min}, so you set up the following equation:
\frac{440\ bolts}{48\ mins} = \frac{x}{30\ mins} \\
440*30=48*x\\
13200=48x\\
x=\frac{13200}{48}=275 \frac{bolts}{min}
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3 years ago
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Jake bought 3 drawing pens for $8.07. Each pen costs the same amount. About how much did he spend for one pen? * 2 points
Marina86 [1]

Given:

Jake bought 3 drawing pens for $8.07.

Each pen costs the same amount.

To find:

How much did he spend for one pen?

Solution:

Let x be the cost of each pen. Then

Cost of three pens = 3x

Jake bought 3 drawing pens for $8.07.

3x=8.07

Divide both sides by 3.

x=\dfrac{8.07}{3}

x=2.69

Therefore, he spend $2.69 for one pen.

3 0
3 years ago
Two groups went bowling. Here are the scores from each group.
vladimir2022 [97]

Answer:

Group A has greater variability

Step-by-step explanation:

Group A: 80, 100, 190, 110, 70, 90, 130

The variability of group A data :

Taking the range :

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Range = Maximum - Minimum ; 190 - 70 = 120

Group B : 50, 110, 100, 120, 107, 140, 150

The variability of group B data :

Taking the range :

Maximum  = 150 ; Minimum = 50

Range = Maximum - Minimum ; 150 - 50 = 100

Hence, Group A has greater variability

6 0
2 years ago
Jayden just graduated from college and owes $19,400 on his student loans. The
ELEN [110]

Answer:

M=19400(1.5)/1-(1+1.5)-(15x12)

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Then you would round up so it wo9uld be $28,918.

6 0
3 years ago
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Verdich [7]
I mean it should be 7 cause 2 angles are congruent.
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