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const2013 [10]
3 years ago
15

Solve for x. 5(x - 10) = 30 – 15xA. x = 1 B. x = 4 C. x = 5 D. x = 8​

Mathematics
2 answers:
Serjik [45]3 years ago
5 0

x=4

Step-by-step explanation:

Distrubutive property: 5x-50=30-15x

get x on one side: 5x-50+15x=30

combine like terms: 20x-50=30

subtract on both sides: 20x=30+50

20x=80

simplify: 20/20=80/20

x=4

Alenkasestr [34]3 years ago
4 0
5x - 50 = 30 - 15x
30+50= 80
-15x - 5x = -20x

-20x = 80

20/80

4

Anwer B.
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henry and his brother each start a savings account. henry begins with $200 and deposits $25 each month. his brother begins with
zlopas [31]

Answer:

Henry after 2 months: 250

His brother after 2 months: 220

Step-by-step explanation:

Henry started with $200 so add $25 twice (for 2 months) and get $250 dollars after 2 months.

His brother started with $150 so add $35 twice and get $220 dollars after 2 months

4 0
3 years ago
Please help me. I really appreciate it if you answered. Thank you! <3
exis [7]

Answer:

$3100 is invested at 9%

$4900 is invested at 11%

Step-by-step explanation:

Let's take "x" be the amount invested at 9%.

(x + 1800) is invested in another account at 11%.

The interest amount earned by the two accounts is $818.

Here we can use the simple interest formula and find the amount invested in each account.

Simple interest (I) = , where P- is the principal , N is the number of years and R is the interest rate.

Simple interest =

0.09x + 0.11(x+1800) = 818

Now we have to simplify and find the value of x .

Use the distributive property and simplify the second term.

0.09x + 0.11x + 198 = 818

0.2x + 198 = 818  

0.2x =818 - 198

0.2x = 620

x = 620/0.2

x = 3100.

So $3100 is invested at 9%

x + 1800 = 3100 + 1800

= $4900

$4900 is invested at 11%

Hope this helped.

6 0
3 years ago
Also need help on this
Ira Lisetskai [31]
Answer is 0.5
-2 divided by -4 equals 0.5
and same thing for the rest of the equation.
8 0
3 years ago
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The measure of ∠1 =<br><br> 188<br> 172<br> 94
yanalaym [24]

Answer:  Third option is correct.

Step-by-step explanation:

Since we have given that

There is a cyclic quadrilateral.

As we know that "Sum of opposite angles in a cyclic quadrilateral is supplementary.":

so, it becomes,

86^\circ+\angle 1=180^\circ\\\\\angle 1=180^\circ-86^\circ\\\\\angle 1=94^\circ

Hence, the measure of  ∠1 = 94°

Therefore, Third option is correct.

4 0
3 years ago
Evaluate the expression 3.5x when x is 2.
Vesna [10]

Answer:

X= 7

Step-by-step explanation:

Since x= 2 you would plug it in 3.5 times 2 = 7

8 0
3 years ago
Read 2 more answers
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