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3 years ago

Which expression represents 3 more than 2x

Mathematics

1 answer:

andrey2020 [161]3 years ago

4 0

The answer would have to be 3+2x

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Which of the following expressions has a value of 5? Select all that apply.

worty [1.4K]

Answer: all that has value of 5

A. -3 - (-8)

B. -1 + 6

D. 2 - (-3)

6 0

3 years ago

the ratio of pennies to quarters in a piggy bank is 14:3. if there are 51 quarters in the bank, how many pennies are there

malfutka [58]

The number of pennies in bank is 42

Solution:

Given that ratio of pennies to quarters in a piggy bank is 14 : 3

Let 14x be the number of pennies in piggy bank

Let 3x be the number of quarters in piggy bank

To find: number of pennies

Given that there are 51 quarters

number of pennies in piggy bank + number of quarters in piggy bank = 51

14x + 3x = 51

17x = 51

x = 3

number of pennies = 14x = 14(3) = 42

Thus the number of pennies in bank is 42

4 0

3 years ago

A player shoots a basketball from a height of 6 feet. The equation, h = -16t^2 + 25t + 6, gives the height, h , of the basketbal

noname [10]

Answer:

$\boxed {\boxed {\sf 7.5 \ feet}}$

Step-by-step explanation:

We are given this function for the height (h) after t seconds:

$h=-16t^2+25t+6$

Seconds is t and we want to find the height after 1.5 seconds. Plug 1.5 in for t.

$h= -16(1.5)^2+25(1.5)+6$

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.

Solve the exponent first.

(1.5)²= 1.5*1.5=2.25

$h= -16(2.25)+25(1.5)+6$

Multiply.

$h= -36+25(1.5)+6$

$h= -36+37.5+6$

Add.

$h=1.5+6=7.5$

This is already rounded to the nearest tenth, so it is the answer.

After 1.5 seconds, the basketball is at a height of 7.5 feet.

6 0

3 years ago

On the graph, sketch f(x)=x+3 as well as g(x)=x

tresset_1 [31]

Answer:

below

Step-by-step explanation:

5 0

1 year ago

I really need help:)))

vovikov84 [41]

Answer:

0.985

Step-by-step explanation:

You can do 1 - 0.015 to solve this problem.

1 - 0.015 = 0.985

Hope that helps!

7 0

3 years ago

Read 2 more answers