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Amanda [17]
3 years ago
10

Sabendo que a-b=30 a/11=b/6,determine o valor do a e do b

Mathematics
1 answer:
timurjin [86]3 years ago
5 0
I hope this helps you

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A meteor crater is 4000 feet in diameter. approximate the distance around the crater.
Troyanec [42]

9514 1404 393

Answer:

  12,566 ft ≈ 2.38 miles

Step-by-step explanation:

The circumference of a circle is given by the formula ...

  C = πd

For a diameter of 4000 ft, the circumference of a circular crater is about ...

  C = (4000 ft)(3.141593) ≈ 12,566 ft

At 5280 ft per mile, that distance is about ...

  (12,566 ft)/(5280 ft/mi) ≈ 2.38 mi

The distance around the crater is about 12,566 ft or 2.38 miles.

3 0
3 years ago
A red die is tossed and then a green die is tossed. What is the probability that red die shows a number larger than three and th
makkiz [27]
If you roll two fair dice, a green one and a red one?
A= are the outcomes on the dice independent?
B= Find P(1 on green die and 2 on red die)
C= Find P(2 on green die and 1 on red die)
D= Find P(1 on green die and 2 on red die) or (2 on green die and 1 on red die)

A= yes
B= p(1)*(p2)=1/6*1/6=1/36
C= p(2)*(p1)=1/36
D= 1/36=1/18 I hope it helps !
4 0
3 years ago
1 1/2= v + 3/4 (that's 1 and a half, not 11 over 2)<br> what is v?
Irina-Kira [14]

Answer:

The value of v is 3/4.

Step-by-step explanation:

First, you have to convert mixed number into improper fraction :

1 \frac{1}{2} \\  =  \frac{2 \times 1 + 1}{2}  \\  =  \frac{3}{2}

In order to find the value of v, you have to substract 3/4 to both sides :

\frac{3}{2}  = v +  \frac{3}{4}

\frac{3}{2}  -  \frac{3}{4}  = v +  \frac{3}{4}  -  \frac{3}{4}

v =  \frac{3 \times 2}{2 \times 2}  -  \frac{3}{4}

v =  \frac{6}{4}  -  \frac{3}{4}

v =  \frac{3}{4}

8 0
3 years ago
Read 2 more answers
Solve the equation. Then check your solution.
ra1l [238]

Answer:

4

Step-by-step explanation:

7 0
3 years ago
A model is 4.2 feet tall, the plywood used to make the model is 0.6 inch thick. How many sheets of plywood to make the model?
nadya68 [22]
Answer=84 sheets

4.2feet
1 foot=12 inches

4.2*12=<span>50.4inches

50.4/0.6=</span><span>84 sheets</span>
4 0
4 years ago
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