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3 years ago

9

Translate this sentence into an equation. The product of Rick's height and 4 is 64 . Use the variable r to represent Rick's heig

ht.

1 answer:

777dan777 [17]3 years ago

4 0

The equation is r x 4 = 64 , then you do 64 / 4 = 16. So 16 is ricks height.

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Y=1/3x-3<br> Y=-x+5 <br> How do I solve

ehidna [41]

Since both equations are equal to y, we can just combine them like this:

1/3x-3=-x+5

1/3x=-x+8

4/3x=8 (since x is 1x which is 3/3x)

x=6

Plug x back in:

y=-6+5

y=-1

So x=6 and y=-1

Hope this helped!

4 0

3 years ago

3•x2 + 1(2)<br> (2)x-2(3)

Marina CMI [18]

I got 4x if that isn’t right I will check again

8 0

3 years ago

On a 40 question test students gain 6 points for each correct answer and lose 0.5 points on each incorrect answer. If everyone r

juin [17]

Answer:

$\text{r}=5.5\text{c}-20$

Step-by-step explanation:

GIVEN: On a $40$ question test students gain $6$ points for each correct answer and lose $0.5$ points on each incorrect answer. If everyone required to give an answer to each question.

TO FIND: the formulas that describes how a student's raw score, r, depends on the number of correct answers he or she provided, c.

SOLUTION:

Total number of incorrect questions $=40-\text{c}$

Total marks deducted due to incorrect question $=(40-\text{c})\times0.5=20-0.5\text{c}$

Total correct questions $=\text{c}$

Total marks scored $=6\text{c}$

Total raw marks $\text{r}=\text{total marks gained}-\text{total marks deducted}$

$\text{r}=6\text{c}-(20-0.5\text{c})$

$\text{r}=5.5\text{c}-20$

ormulas that describes how a student's raw score, r, depends on the number of correct answers he or she provided, c is $\text{r}=5.5\text{c}-20$

7 0

3 years ago

UREGENTTT HELPPP<br><br> Which shows this equation in standard form? 8-4(x-y)= 2x+6

jeka57 [31]

Answer:

Step-by-step explanation:

9-4(x-y)=2x+6

9 - 4x + 4y = 2x + 6

9 + 4y = 6x + 6

4y = 6x - 3

y = 3x/2 - 3/4

7 0

3 years ago

Solve for xxx.<br> Your answer must be simplified.<br> x/7≥−6

uysha [10]

Answer:

x ≥ −42

Step-by-step explanation:

Let's solve your inequality step-by-step.

x/7≥−6

Step 1: Simplify both sides of the inequality.

$\frac{1}{7}x\geq -6$

Step 2: Multiply both sides by 7.

$7*(\frac{1}{7}x)\geq (7)*(-6)$

x ≥ −42

4 0

3 years ago