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Elis [28]
2 years ago
7

Can u pls help me with this

Mathematics
2 answers:
sp2606 [1]2 years ago
8 0
I believe there is one solution as 10/7 and -7/4 can be solved and we can get the value of y.
jarptica [38.1K]2 years ago
5 0
I believe it doesn’t have a solution because even if the 9/7x are the same, the other fractions are not the same value therefore, there is no solution since
+10/7≠ -7/4
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A worker bee flies 5/8 of a mile in 1/16 of an hour. At this rate, how far can the bee fly in 1 hour?
PIT_PIT [208]

Answer:

10 miles

Step-by-step explanation:

So we know that it flies 5/8 of a mile in 1/16 of an hour. So after flying 5/8 of a mile 16 times, we will reach an hour. So we can do 5/8*16 and we get our answer of 10. So the bee will have traveled ten miles.

8 0
3 years ago
The length of a bridge is 140 m. The length of each of Robert's paces is 55 cm.
Sindrei [870]

Answer:

255 steps

Step-by-step explanation:

They give us the length of the bridge and the length of each step of Robert, therefore we must divide these values to find the number of steps necessary, but first we must pass the distance of the bridge to centimeters:

140m * 100cm / 1m = 14000

Therefore the bridge would have a length of 14000 centimeters, we divide:

14000/55 = 254.54

Which means that Robert take at least 255 steps to fully walk the bridge.

6 0
3 years ago
Design a rectangular milk carton box of width $$w, length $$l, and height $$h, which holds $$128 cubic cm of milk. The sides of
SashulF [63]

Answer:

Length = 4cm

Width = 4cm

Height = 8cm

Step-by-step explanation:

The volume of the box = 128cm^3

LWH = Volume

LWH = 128cm^3

The side of the box = $1 per cm^2

The top and bottom of the box = $2 per cm^2

Let C be the cost function

C(LWH) = (1) 2H (L+W) + (2) 2LW

from LWH = 128cm^39

H = 128/LW

put H = 128/LW in equation for C(LWH)

C(LW) = (1) 2(128/LW) + (L+W) +(2) 2LW

= 256/LW(L+W) + 4LW

= 256(1/L + 1/W) + 4LW

Differentiate C with respect to L

dC/dL = 4W - 256/L^2 = 0

Differentiate C with respect to W

dC/dW = 4L - 256/W^2 = 0

The cost is minimum when the two partial derivatives equal 0

From 4W - 256/L^2 = 0

4W = 256/L^2

W = (256/L^2) 1/4

W = 64/L^2

From 4L - 256/W^2 = 0

4L = 256/W^2

L = (256/W^2) 1/4

L = 64/W^2

Since L = W,

L= W = cuberoot (64)

L = W = 4cm

Recall that H= 128/LW

H = 128/(4*4)

H= 128/16

H= 8cm

therefore;

L= 4cm

B= 4cm

H= 8cm

5 0
3 years ago
PLEASE HELP!!!! The total yield of rice in a farm is 10^8 kg, and the land is10^5 km. What is the output of rice every km? (the
Margaret [11]

Answer:

10^3 kg

Step-by-step explanation:

Think about it that you have the total yield 10^8 kg of rice from 10^5 km^2 of land. You now only want How much does 1 km^2 of land produce. Which can be shown as

10^8/10^5=??/1. To get the denominator to equal one you divide the top and bottom of the first problem by 10^5. 10^8/10^5 is 10^3. So it's 10^3 kg

6 0
3 years ago
Read 2 more answers
A bus travels 20 km in 30 min.what is the average speed of the bus
likoan [24]
The answer is c 40 km
6 0
3 years ago
Read 2 more answers
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