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3 years ago

7n - 4 = 31

Mathematics

1 answer:

garik1379 [7]3 years ago

6 0

7n - 4 = 31

move -4 to the other side

sign changes from -4 to +4

7n-4+4= 31+4

7n= 31+4

7n= 35

divide both sides by 7 to get n by itself

7n/7= 35/7

cross out 7 and 7 , divide by 7 and then becomes 1*1*n= n

n= 35/7

answer:

n= 5

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3 years ago

Read 2 more answers

in preparation for a party, brant is putting desserts onto platters. the chocolate cake is cut into 15 pieces and the cheesecake

marishachu [46]

Answer:

The greatest number of platters he can prepare is 3.

Step-by-step explanation:

Given : In preparation for a party, brant is putting desserts onto platters. the chocolate cake is cut into 15 pieces and the cheesecake is cut into 6 pieces. if he wants to prepare identical platters without having any cake left over.

To find : What is the greatest number of platters he can prepare?

Solution :

The greatest number of platters he can prepare is given by finding the GCF of 15 and 6.

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The GCF is the greatest common factor.

$GCF(6,15)=3$

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2 years ago