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melamori03 [73]
3 years ago
13

The expression

Mathematics
1 answer:
soldi70 [24.7K]3 years ago
6 0

9a+6s =cost

substitute 3 adults and 5 students

9(3) +6(5) = cost

multiply

27+30=cost

add

57=cost

Total cost is $57

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Can someone help me pls ?
r-ruslan [8.4K]

Answer:

58.3%

Step-by-step explanation:

Add up the numbers that are only in one circle

18+7+10 = 35

Take this over 60

35/60=.58333333

Change to percent form to one decimal place

58.3%

3 0
2 years ago
Solve 9x + 3 = -33 . PLEASE HELP ME IT WILL MAKE MY DAY​
ValentinkaMS [17]

:  \implies \sf 9x + 3 =  - 33

: \implies \sf 9x =  - 33 - 3

:  \implies \sf 9x =  - 36

:  \implies \sf x =  \dfrac{ - 36}{9}  =  - 4

\therefore  \sf x =  -4

8 0
2 years ago
Read 2 more answers
Reggie Means invested part of $31,000 in municipal bonds that earn 7.5% annual simple interest and the remainder of the money in
insens350 [35]

Answer:

Principal Invested in Municipal Bonds is $16,000

Principal Invested in Corporate Bonds is $15,000

Step-by-step explanation:

If;

Principal Invested in municipal bonds = a

Principal Invested in corporate bonds = b

then we have;

a + b = $31,000 --------------------------------Equation 1

0.075a + 0.085b = $2,475  ---------------Equation 2

From equation 1 we have;

a = 31,000 - b

By putting the values of a in Equation 2 we get;

0.075 (31,000 - b) + 0.085b = 2,475

2,325 - 0.075b + 0.085b = 2,475

0.01b = 150

b = $15,000

By putting the values of b in equation 1 we get;

a = $16,000

4 0
3 years ago
5. 7 − 4.8 + 110 × 9 =
dedylja [7]

Answer: 990.9 .9+ 990

Step-by-step explanation: you have to do order of operations witch is PEMDAS so you do Parentheses then exponents multiplication or division and addition or subtraction but you do it depending how it starts and in this case you have to subtract the 2 numbers and then add the answer of the multiplication problem

7 0
3 years ago
Read 2 more answers
What percent of 20 is 40?<br> A 50%<br> B 75%<br> C 100%<br> D 200%
svet-max [94.6K]

It was

40 is 200% of 20

7 0
3 years ago
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