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lisov135 [29]
2 years ago
14

5/8 divided by -8/9 thanks if you help me

Mathematics
2 answers:
liubo4ka [24]2 years ago
8 0
5/8*-9/8 = -5/9

Opposite when dividing and then multiply!
postnew [5]2 years ago
8 0

Answer:

-45/64 (about 0.70 as a decimal)

Step-by-step explanation:

5/8/-8/9 = 5 * 9 / - 8 * 8 = 45/-64

45/-64 = -45 / 64 (fraction rules) :)

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Jack and Diane were saving money to go to a rock n roll concert. They need at least $750 in order to go if you count their gas,
nataly862011 [7]

Answer:

\left\{\begin{array}{l}y\le 4x\\ \\x\ge 10\\ \\50x+25y\ge 750\end{array}\right.

Step-by-step explanation:

Let x represents the number of nights Jack worked and y represents the number of nights Diane worked.

1. The number of nights Diane is scheduled to work is no more than four times the number of nights Jack is scheduled to play. Then

y\le 4x

2. Diane will work at least 10 times before the concert. Then

x\ge 10

3. Jack earns $50 per night that he plays, then he earned $50x in x nights. Diane earns $25 each night she works, then she earns $25y in y nigths. They need at least $750, so

50x+25y\ge 750

4. We get the following set of constraints to model the problem:

\left\{\begin{array}{l}y\le 4x\\ \\x\ge 10\\ \\50x+25y\ge 750\end{array}\right.

4 0
3 years ago
Aviation:
kolezko [41]

Change in altitude:

42,000 - 18,000 = 24,000 feet

Rate of change  = 24,000 feet / 12 minutes = 2,000 feet per minute

Because the plane was going down, the rate of change would be negative.

The rate would be -2,000 feet per minute.

8 0
2 years ago
A triangle has vertices at (4,3), (-2,4), and (-4, 2). What are the coordinates of the vertices of the image
Alexeev081 [22]

The coordinates are (4,3) ►(6,-2)

(-4,2) ►(-2,-3)

. (-2,4) →(0,-1)

8 0
3 years ago
Read 2 more answers
An alien empire is considering taking over planet Earth, but they will only do so if the portion of rebellious humans is less th
8090 [49]

Step-by-step explanation:

How was the government able to make children go to residential school?

6 0
2 years ago
1. The most massive planet in the solar system, Jupiter, has a mass of about 1,898,000,000,000,000,000,000,000,000 kg. Estimate
UNO [17]

Answer:

D. 2*10^{27} kg

Step-by-step explanation:

Mass of Jupiter is given as 1,898,000,000,000,000,000,000,000,000 kg

Estimating this to the nearest whole number would be = 2,000,000,000,000,000,000,000,000,000 kg (rounding up the the "1,898")

To express this in scientific notation form, simply count how many zeros we have to the nearest whole number, 2.

We have 27 zeros there.

Therefore, we would multiply the whole number, 2, by 10 raise to the power of 27.

An estimate of the mass of Jupiter = 2*10^{27} kg

6 0
3 years ago
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