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marishachu [46]
3 years ago
14

A carpenter installed 10 windows in 4 hours.another carpenter installed 50 windows in 20 hours. Are the two carpenters working a

t the same rate?explain
Mathematics
2 answers:
Sedbober [7]3 years ago
6 0
10/4=2.5
50/20=2.5

both carpenters are working at the same speed rate as 2.5=2.5
marshall27 [118]3 years ago
3 0
Yes they are working at the same rate because 4x5=20 and 10 windows every four hours and 5x10= 50 so they are both working at the same rate. Or here is another answer, They are working at the same rate because one was doing 10 windows every four hours and one did 50 windows in 20 hours, so 4 x 5= 20 which is the amount of hours the other carpenter was doing so 5x10 for every four hours, and that equals 50 so they were both working at the same rate. Hope I helped :)
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2x)(x2) + (2x)(x) + (2x)(-2) + (3)(x2) + (3)(x) + (3)(-2)
Valentin [98]

Answer:

6x^2+2x-6

Step-by-step explanation:

In the expression (2x)(x2)+(2x)(x)+(2x)(-2)+(3)(x2)+(3)(-2) take each set of two and solve those individually. The expression then becomes 4x^2+2x^2-4x+6x-6 the combining like terms you get 6x^2+2x-6.

6 0
3 years ago
Determine the intercepts of the line that correspond to the following table of values.
Ksju [112]
(-24,-2)(-15,-8)
slope = ( - 8 - (-2) / (-15 - (-24) = (-8 + 2) / (-15 + 24) = -6/9 = - 2/3

y = mx + b
slope(m) = -2/3
use any of ur points (-24,-2)...x = -24 and y = -2
now we sub and find b, the y int.
-2 = -2/3(-24) + b
-2 = 16 + b
-2 - 16 = b
-18 = b

so ur equation is : y = -2/3x - 18

now in y = mx + b form, the y int is in the b position
y = mx + b
y = -2/3x - 18
so ur y intercept is -18 or (0,-18) <=====

to find the x int, sub in 0 for y and solve for x
y = -2/3x - 18
0 = -2/3x - 18
2/3x = -18
x = -18 * 3/2
x = - 54/2 = -27....and ur x intercept is -27 or (-27,0) <===

8 0
4 years ago
Please help asap!!!!
AlexFokin [52]

Answer:

3.14mm

Step-by-step explanation:

C = 2 pi r

3 0
3 years ago
8.07 round to the nearest whole
Vitek1552 [10]

The answer is simply "8".

5 0
3 years ago
Read 2 more answers
In ΔRST, r = 850 cm, s = 250 cm and t=940 cm. Find the measure of ∠S to the nearest 10th of a degree.
g100num [7]

Answer:

∠s=15.0 *

Step-by-step explanation:

7 0
3 years ago
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