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jok3333 [9.3K]
2 years ago
12

If you take a number multiply by 7 then takeaway 1. You get the same as if you took the number multiply by 5 then takeaway 8. Wh

at is the number?
Mathematics
2 answers:
scZoUnD [109]2 years ago
8 0

Answer:

x = -3.5

Step-by-step explanation:

First we create the equation.

Let x = the unknown number

7x-1 = 5x - 8

Add 8 to both sides

7x + 7 = 5x

Subtract 7x

7 = -2x

Divide by 2

-7/2 = x

-3.5 = x

muminat2 years ago
7 0
7x - 1 = 5x - 8
Minus 5x on each side
2x -1 = -8
Plus 1 on each side
2x = -7
Divide by 2 on each side
x = -7/2

The number is most likely -7/2
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A woman is walking at the rate of 90 yards per minute. How fast is she going in feet per second?
motikmotik

Answer:

She is going at the rate of 4.5 feet per second.

Step-by-step explanation:

Given:

The rate of walking is 90 yards per minute.

Now, to find the rate in feet per second.

1 yard = 3 foot.

1 minute = 60 seconds.

So, first we find the rate of walking per second in yard = 90\div 60

Therefore by dividing we get = 1.5 yard

Now, we find the rate of walking per second in feet = 1.5\times 3

So, by multiplying we get = 4.5 feet

Therefore, she is going at the rate of 4.5 feet per second.

3 0
3 years ago
NO LINKS OR ANSWERING IF YOU DON'T KNOW!!!!
mestny [16]

9514 1404 393

Answer:

  a, c

Step-by-step explanation:

There are 3 linear factors, so the function is odd degree (cubic). The coefficients of x are all positive, so the function has the general shape of an increasing function, left-to-right. The three linear factors mean that the curve crosses the x-axis 3 times, changing sign each time.

The x-intercepts are the values of x that make the factors zero: -7, 3/2, 5. The shape of the function tells you it will be negative for x < -7. Between -7 and 3/2, it will be positive, since it changes sign at x=-7. It changes sign again at x=3/2, so will be negative for 3/2 < x < 5.

In short, the function will be negative at any point that has an odd number of function zeros to its right (taking multiplicity into account).

The function is negative on intervals (a) and (c).

8 0
3 years ago
Suppose that the population of deer in a state is 1,500 and is growing 2% each year. Predict the population after 4 years.
frutty [35]
Required number
= 1500*(1+2%)^4
=1624(cor.to.the nearest integer)
7 0
3 years ago
Luca works at an appliance store. He recently sold 12 appliances, 6 of which were
BartSMP [9]

Answer:

1/2

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Let A(-1,5) and B(6,-2) be the endpoints of a segment. What are the
Nesterboy [21]
-1



You put -1,5 on top of 6,-2 then u subtract so basically-1-6=-7 and 5- -2=7 so -7 over 7 you divide both by 7 to make it in simple form so it’s -1
6 0
3 years ago
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