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mezya [45]
3 years ago
15

What is the value of 5 x(s+t) when s+t=289?

Mathematics
1 answer:
muminat3 years ago
3 0

Answer:1445

Step-by-step explanation:

5 × (s+t)

Where s+t = 289

Then 5 × (s + t)

= 5× 289

= 1445

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Solve 2x + 3y = 16<br> 4x+10y = 40​
Aleksandr-060686 [28]

Answer:

x = 5, y = 2

Step-by-step explanation:

First, find the value of x in respect to y:

2x + 3y = 16
2x = 16 - 3y

x = 8 - 3/2y

Then, substitute this expression into the second equation (Since we've established x is equal to 8 - 3/2y, we can put that in place of x):

4(8 - 3/2y) + 10y = 40

Then, distribute and solve for y:

32 - 6y + 10y = 40
32 + 4y = 40
4y = 8
<u>y = 2</u>

Now that we know what y equals, we can substitute the value of y in the equation to find x:
2x + 3(2) = 16
2x + 6 = 16
2x = 10

<u>x = 5</u>


8 0
3 years ago
What is x if x/5 =-9
Leona [35]

Answer:

x = -45

Step-by-step explanation:

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Multiply 5 to both sides:

(x/5) * 5 = (-9) * 5

x = -9 * 5

x = -45

x = -45 is your answer.

~

3 0
3 years ago
Read 2 more answers
5
uranmaximum [27]

Answer:

ok....let me try .....

  • ohhhh leave it. gu

<h2>..ok bro....sorry don't be angry <em><u>b</u></em><em><u>j</u></em><em><u>h</u></em><em><u>u</u></em><em><u>j</u></em><em><u>j</u></em></h2>
6 0
3 years ago
What is -13-5 and -12-[-3]
LekaFEV [45]

-13 - 5 = -18

-12 - [-3] = -9

Hope this helps!

7 0
3 years ago
Read 2 more answers
Solve these inequalities:<br> 7x-1&lt;26-2x<br> please help me with this one guys ;-;
tiny-mole [99]

Answer:  inequality form x < 3    interval form: ( -∞, 3)

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

5 0
3 years ago
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