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seraphim [82]
3 years ago
9

Solve by elimination method 7x+5=-2

Mathematics
1 answer:
docker41 [41]3 years ago
5 0
Hello!!

7x + 5 = -2

7x  = -7

x = -1

Good luck :)

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Chloe needs to swim a total of 9 miles this week. So far this week , she swam 5 5/8 miles. Use the equation 5 5/8 + m =9 to find
pshichka [43]

Alright, so all we have to do here is solve the equation!

5 5/8 + m = 9

m = 9 - 5 5/8

Now is the tricky part - doing the subtraction! Let's change 9 to 8 8/8 (which is still equal to 9).

m = 8 8/8 - 5 5/8

Then we can subtract fairly easily!

m = (8 - 5) + (8/8 - 5/8)

m = 3 3/8 miles

Hope this helps!! :)

7 0
3 years ago
Read 2 more answers
Let u = <-3, -5>, v = <-3, 1>. Find u + v.
Gemiola [76]
U + v =  {-3 + -3,     -5 + 1} =  <span> {-6 ,  -4} 

</span>u + v  =  <span> {-6 ,  -4} </span>
3 0
4 years ago
Helpppppppp please ASAP
Hitman42 [59]

Answer:

y=5g

Step-by-step explanation:

7 0
3 years ago
Find the absolute maximum and minimum values of the function over the indicated​ interval, and indicate the​ x-values at which t
Yakvenalex [24]

Answer:

a. Maximum= 27, minimum= -5

b. Maximum= 19, minimum=-37

Step-by-step explanation:

We have the function f(x)=8x-5. Since the function correspond to a line, then the maximum and minimum values of the function over an interval are in the endpoints of the interval.

Observe that if the line has negative slope then the minimum value is in the right endpoint. If the line has positive slope the minimum value is in the left endpoint of the interval.

The function f(x) has slope m=8. Then

a. the minimum value of f(x) in the interval [0,4] is reach when x=0, and the minimum is f(0)=8*0-5=-5 and the maximum is f(4)=8(4)-5=32-5=27

b. the minimum value of f(x) in the interval [-4,,3] is reach when x=-4, and the minimum is f(-4)=8(-4)-5=-32-5=-37 and the maximum is f(3)=8(3)-5=24-5=19

3 0
4 years ago
The marked price of an article is 30% above it's selling price and the cost price is 35%less than it's marked price. find the di
SashulF [63]

Answer:

Let C be the cost price of the article. Then:

C(1+30%)=marked price

So:

C(1+30%)=C(1.3)

=1.3C

If the article is then marked down 35%, then its’ price would be:

1.3C(1–35%)=1.3C(.65)

=0.845 or 84.5% of its’ cost

Then:

0.845–1=-0.155

or, a 15.5% loss on the item

8 0
3 years ago
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