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3 years ago

How would making a table help you to find the number of minutes it took Sam to cut the sheet metal into 8 pieces

1 answer:

3 0

It would help you to make a table because say your answer is 8 pieces is 1 minute and then the next question is how long wouls it take sam to cut 24 pieces you would use the table with you first answer and then multiple both numbers 3 times to give you your answer. Its really just a way to have more organized answers

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Jewel is 7 years old and John is 16 years younger than Dave. One year ago, Dvae's age was twice the sum of Jewel's and John's ag

ivanzaharov [21]

Answer:

Jewel is 7 years old

John is 1 year old

Dave is 17 years old

Step-by-step explanation:

From the question we are told that:

Jewel age is $J=7 years$

John age $J'=(D-16)years$

Dave's age a Year ago

$D-1=2(J-1+J'-1)$

So that Dave.s age this Year could be

$D=2((J-1)+(J'-1))+1$

Simplifying Equation for Dave's age we have

$D=2((7)-1+(D-16)-1)+1$

$D=2(6+D-15)+1$

$D=2(D-9)+1$

$D=2D-18+1$

$D=17 Years$

Dave is 17 years old

Therefore

Johns age is

$J'=(D-16)$

$J'=17-16$

$J'=1year old$

John is 1 year old

7 0

3 years ago

What is (4x + 3) + (-2x + 4)

kobusy [5.1K]

Answer:

(4x + 3) + (-2x + 4) = 2x + 7

Step-by-step explanation:

(4x + 3) + (-2x + 4) = you then collect like terms

(4x + -2x) + (3 + 4)= like this, and you add what's inside perenthesis

= 2x + (3 + 4). step-by-step

= 2x + 7. then that is how you get =2x+7

5 0

3 years ago

Read 2 more answers

Mai biked 7 and 1/4 miles today, and Noah biked 3 5/8 miles. How many times the length of Noah's bike ride was Mai's bike ride?

Firdavs [7]

Answer:

2 times

Step-by-step explanation:

Mai biked $7\frac{1}{4} = \frac{29}{4}$ miles today and Noah biked $3\frac{5}{8} = \frac{29}{8}$ miles today.

We are asked how many times the length of Noah's bike ride was Mai's bike ride.

Therefore, the length of Mai's bike ride was $(\frac{29}{4} \div \frac{29}{8}) = 2$ times the length of Noah's bike ride.

Therefore, we will take option B will be correct. ( Answer )

7 0

3 years ago

The exterior walls of the regular pentagon shaped courthouse must be painted. Each wall is 80ft by 18ft what is the surface area

ivolga24 [154]

what u do is 80 times 18 times 5

7 0

3 years ago

Where can u place these at tell me

Alex777 [14]

The best thing to do is to rewrite the fractions as decimals
-2/3 is approx. equal to -0.6666667
So a little past half way (to the left) between -1 and 0
1 1/5 is 1.5 so that is right between 1 and 2

Hope this helps :)

5 0

3 years ago