Ask question

Ask question

All categories

3 years ago

5

John. wants to receive a 96% average on 4 math tests .So far he has taken 3 tests.His grades are 94%, 98%, and 98%. Write an equ

ation in terms of to find out what John must score on his fourth test in order to receive a 96% average.

1 answer:

Drupady [299]3 years ago

8 0

John must recieve a 95% on his next test

You might be interested in

Wht is -3(2x-1)+8=15

Svetllana [295]

Answer:

x=- $\frac{2}{3}$

Step-by-step explanation:

subtract -3(2x-1)+8=15

-8 -8

_____________

-3(2x-1)=7

divide

$\frac{-3(2x-1)}{-3} =\frac{7}{3}$

then simplify

2x-1= $\frac{7}{3}$

add both sides

2x-1+1= $\frac{7}{3}$ +1

simplify again

2x-1+1= $\frac{7}{3}$ +1=2x= $-\frac{4}{3}$

divide by 2

2x= $-\frac{4}{3}$

-2 -2

_________

2x÷2=1

$-\frac{4}{6}divided by 2$

x=- $\frac{2}{3}$

5 0

3 years ago

If there are 10 people in a race how many ways can 1st 2nd 3rd places be awarded

kiruha [24]

3 slots
1st slot has 10 possible people
2nd slot has 9 possible people (1 less than previous)
3rd slot has 8 possible people

so there are 10*9*8 ways or 720 ways

4 0

3 years ago

Factor 72x^2 + 72x^2+ 18x

malfutka [58]

Answer:

Use the app photomath

Step-by-step explanation:

7 0

2 years ago

2x² + 4x + 4 + x² + 1 = 180

Tasya [4]

Step-by-step explanation:

$2 {x}^{2} + 4x + 4 + {x}^{2} + 1 = 180$

$3 {x}^{2} + 4x + 5 = 180$

${3x}^{2} + 25x - 21x - 175 = 0$

$x \times (3x + 25) - 7(3x + 25) = 0$

$(3x + 25) \times (x - 7) = 0$

$3x + 25 = 0 = x - 7 = 0$

$x = - \frac{25}{3} = x = 7$

$= x_{1} = - \frac{25}{3} . \: \: x_{2} = 7$

5 0

2 years ago

Factorization prima de 1024

Tamiku [17]

1024
/ \
32 32
/ \ / \
8 4 8 4
/\ /\ /\ /\
(2) 4 (2) (2)(2) 4 (2) (2)
/\ /\
(2)(2) (2)(2)

2x2x2x2x2x2x2x2x2x2 or 2^10

*(There wasn’t a little 10 to use so I just put 2^10 which is two to the tenth power)

3 0

2 years ago