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Aleksandr [31]
3 years ago
12

Giving brainliest and 20 points! please solve this. :D

Mathematics
1 answer:
andrezito [222]3 years ago
6 0

Answer:

1.) 7x+5y

2.)-19m+14r

3.)22b+40c

4.)10x+25

5.)7m+7

Step-by-step explanation:

ez

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There were 326 students at the high school dance. There were 24 more girls than boys. How many girls and boys attended?​
abruzzese [7]

Answer:

187 girls 139 boys

Step-by-step explanation:

first you divide 326 by 2 to get 163, and then you add 24 to it to find how many girls and then you subtract 24 from it to find how many boys

4 0
2 years ago
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Adam exchanged British pounds for Swiss franc He changed £400 into 592 francs What was the exchange rate of British pounds to Sw
OLEGan [10]

Answer: 1 : 1.48

Step-by-step explanation:

Adam was able to change £400 into 592 francs which means that the British pound is stronger because it was able to buy more Swiss francs.

The exchange rate can be gotten using direct proportion:

400 : 592

1       : x

Cross multiply:

400x = 592

x = 592/400

x = 1.48

Exchange rate is:

= 1 : 1.48

5 0
3 years ago
Solve the equation.<br><br> -7b=21
Kipish [7]

Answer:

b=-3

Step-by-step explanation:

-7b=21

-7b/-7=21/-7

b=-3

7 0
3 years ago
Read 2 more answers
What is the answer?​
yulyashka [42]

Answer:

5

Step-by-step explanation:

Plz mark brainliest!!!

5 0
2 years ago
What is the present value of $6,000 to be received at the end of each of eight periods, assuming the first payment occurs at the
Kipish [7]

Answer: Present value = $7200

Step-by-step explanation: Given Principal that is the original amount is $6000

Rate is 10% every fourth year

But the total period is eight.

So the interest would be paid 8/4 = 2 times.

Therefore,

Simple interest

= {principal * rate * no of times}/100

= {$6000*10*2}/100

Simple interest = $1200

Present value

= principal + Simple interest

= $6000 + $1200

= $7200.

6 0
3 years ago
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