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3 years ago

Equivalent expression of x+4+3x

Mathematics

1 answer:

Andreas93 [3]3 years ago

4 0

Answer:

4x+4

Step-by-step explanation:

Combine like terms:

3x+x= 4x

Add remaining terms (+4)

4x+4

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olga nikolaevna [1]

Answer:

Fraction of the original board left = $\frac{2}{15}$

Step-by-step explanation:

Let the length of the board is = l feet

Marty saws off $\frac{1}{5}$ of a wooden board.

Length of the board left = l - $(\frac{1}{5})l$

= $(\frac{4}{5})l$ feet

He saws off $\frac{3}{4}th$ of the remaining board,

Board left = $(\frac{4}{5})l-[(\frac{4}{5})l\times (\frac{3}{4})]$

= $\frac{4}{5}l-\frac{3}{5}l$

= $\frac{1}{5}l$ feet

He finally saws off $\frac{1}{3}$ rd of the remaining board.

Board left = $\frac{1}{5}l-[\frac{1}{5}\times \frac{1}{3}]l$

= $(\frac{1}{5}-\frac{1}{15})l$

= $\frac{2}{15}l$ feet

Fraction of the original board left = $\frac{\frac{2}{15}l}{l}$

= $\frac{2}{15}$

6 0

3 years ago

Carlos kicks a ball into the air. The function that models the scenario is f(t)= -16t^2+ 96t

gregori [183]

Check the picture below

thus $\bf 0= -16t^2+ 96t\impliedby \textit{hits the ground}$

solve for "t"

4 0

3 years ago

Divide the difference of 50 and 10 by the sum of 3 and 2. what expression represents the statement?

Makovka662 [10]

Answer:

(50-10) ÷ (3+2)

Step-by-step explanation:

7 0

2 years ago

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has a $50 bill and wants to buy a pair of shoes for $48. If the sales tax is 6% how much more does she need to buy the shoes?

adelina 88 [10]

Answer:

He will ned 1 dollar more

Step-by-step explanation:

50x.06=3 so that is the sales tax subtract it by 2 and he will need 1 more dollar

3 0

3 years ago

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An aircraft carrier left Hawaii one hour before a fishing boat. The ships traveled in opposite directions. The fishing boat trav

goldfiish [28.3K]

Answer:

21.6 mph

Step-by-step explanation:

The fishing boat traveled 30 miles and the air carrier is 100 apart meaning its 130 miles. It's in 6 hours so you do 130 ÷ 6 = 12.6mph

6 0

3 years ago

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