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Ne4ueva [31]
2 years ago
7

Molly shared a spool of ribbon with 12 people. Each person received 3 feet of ribbon. Which equation can she use to find r, the

number of feet of ribbon that her spool originally had?
a. 3+r=12
b. r-3=12
c. 3r=12
d. r/12=3
Mathematics
2 answers:
BartSMP [9]2 years ago
8 0

Answer:

Its <u>D</u>

Step-by-step explanation:

koban [17]2 years ago
5 0

Answer:

d. r/12 = 3

Step-by-step explanation:

r = 3(12)

r/12 = 3

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A crane lifts a 425 kg steel beam vertically a distance of 66 m. How much work does the crane do on the beam if the beam acceler
Fiesta28 [93]
<span>The solution to the problem is as follows:

W=Fd=mad=425*1.8*66 =50490 J

Therefore, it takes </span><span>50490 J of work the crane will do to accelerate the beam upward at 1.8 m/s^2.

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6 0
2 years ago
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Evan went to the park and saw for animals each animal was either a duck or dog if he saw a total of 14 legs how many of each ani
beks73 [17]

Answer:

Two dogs and three ducks

Step-by-step explanation:

Dogs have four legs and ducks have two, to find the answer, you add the number to get your answer.

In this case, two dogs would make a total of 8 legs and three ducks would make a total of 6 legs. Adding 8 and 6 together, you get 14.


7 0
2 years ago
An electrician earns $110 after his first hour of working for a client. His total pay based on the number of hours worked can be
ludmilkaskok [199]

Answer:

a. f(n+1) = f(n) + 20

Step-by-step explanation:

The second hour, f(2) = 130 is the wage of the first hour f(1) = 110, plus 20.

_____

You have to look at the answers and understand what they mean. (This can be difficult when they are nonsense, as here.)

b — means each successive hour of pay is 110 more than the previous one. Clearly that is not the case for the sequence given

c — equates 0 to 20, total nonsense

d — equates 0 to 110, also total nonsense

4 0
2 years ago
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If VX = WZ = 40 cm and m∠ZVX = m∠XWZ = 22°, can ΔVZX and ΔWXZ be proven congruent by SAS? Why or why not? Yes, along with the gi
Masja [62]

Answer:

ΔVZX and ΔWXZ are not congruent by SAS by the given information.

No, there is not enough information given.

The additional information for triangle to be congruent by SAS is given below.

Step-by-step explanation:

GIVEN:

1. VX = WZ = 40 cm and

2.m∠ZVX = m∠XWZ = 22°

3. VZ = WX  ......{this additional information is required for triangles is to be congruent by SAS test}

Proof:

In  Δ VZX and Δ WXZ

     VZ ≅ WX           …………..{additional information}

∠ ZVX ≅ ∠ XWZ    ……….{measure of each angle is 22° given}

     VX ≅ WZ          ………….{length of each side is 40 cm given}

Δ ABC ≅ Δ PQR ….{By Side-Angle-Side test}

For SAS test, two sides of the corresponding triangles should be congruent and the angle between the two side. Then the triangles are said to be congruent by side angle side test.

4 0
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Find the area under the standard normal curve to the left of z = 1.5
DaniilM [7]

Answer:

0.9332

Step-by-step explanation:

3 0
2 years ago
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