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Tanya [424]
3 years ago
7

What is 100 over 90 times 81 - 9

Mathematics
1 answer:
Blizzard [7]3 years ago
3 0

Answer:

81

Step-by-step explanation:

set it up like 100/90*81-9

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Pick the correct description of the line <br><br> 2x -4y=6
DENIUS [597]

Answer:

y=6-2x/-4

Step-by-step explanation:

y= 1/2x-3/2

3 0
3 years ago
Solve -7(s+2)-12=37<br> What is s
Shkiper50 [21]

Answer:

<em>s= </em>-5.57 (rounded to the nearest hundredth)

Step-by-step explanation:

1. Multiply s and 2 by 7.

You'll get -7s-14. We'll come back to this later

2. Subtract 12 from 37.

You'll get 25

3. Add 14 to both sides so that you cancel out the -14.

The equation stands as -7s= 39

4. Divide both sides by -7 so that we leave <em>s </em>by itself.

s= -5.57142857

4 0
2 years ago
Read 2 more answers
Val rented a bicycle while she was on vacation. She paid a flat rental fee of f dollars, plus $8.50 each day. The total cost at
damaskus [11]

The question is incomplete. Here is the complete question:

Val rented a bicycle while she was on vacation. She paid a flat rental fee of f dollars, plus $8.50 each day. The total cost at the end of her vacation was t dollars. Let d represent the number of days Val rented the bicycle. Write an equation representing the total cost at the end of her vacation.

Answer:

t=f+8.5d

Step-by-step explanation:

Given:

Flat rental fee = f

Variable fee per day = $8.50

Total cost at the end vacation = t

Number of days of her vacation = d

Using unitary method, we can find the variable fee for 'd' days.

1 day variable fee = $8.50

Therefore, 'd' days variable fee = 8.50d

Total cost at the end of her vacation can be obtained by adding the fixed rental fee and the variable fee obtained for the given number of days.

Now, total cost is given as:

Total cost = Flat rental fee + Variable fee

Substituting all the variables and framing above in the form of an equation, we get:

t=f+8.5d

Therefore, the equation representing the total cost at the end of her vacation is t=f+8.5d

7 0
3 years ago
Oscar invests $20,000 in three investments earning 6% ,8% and 10%. He invests $9000 more in the 10% investment than in the 6% in
Hatshy [7]
This problem is mainly concerned with setting up an equation.

let's add the interest rates times their respective investment amounts:

a = (9000 + x)0.10

b = x \times 0.06

c=(20000 - ((9000 + x) + x)) 0.08

simplify:

c = (11000 - 2x) \times 0.08

sum of interest:

1780 = a + b + c

1780 = (9000+x) 0.10 + x 0.06 + (11000-2x)0.08

1780 = 1780 + 0 \times x

0=0

solution:

He does not have any invested in the 6%, while he has 9000 invested at 10% and 11,000 invested at 8%

to check:

9000 \times 0.10 + 11000 \times 0.08

= 900 + 880 = 1780

So this ended up being a trick problem because he does not actually have any invested in the 6% option.
6 0
3 years ago
Toni can carry up to 18 lb in her backpack her lunch weighs 1lb,her gym clothes weigh 2lb and her books ( b ) weigh 3lb each how
Natasha_Volkova [10]
Toni can carry 5 books. 18 - 3= 15 15/3=5
6 0
3 years ago
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