1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ber [7]
3 years ago
7

Select all the equations that are true when x = 4

Mathematics
1 answer:
V125BC [204]3 years ago
7 0

Answer:

B and E

Step-by-step explanation:

A. 8x = 2

8(4) = 2

32 = 2

B. 19 + x = 23

19 + 4 = 23

23 = 23

C. 40/x = 5

40/4 = 5

10 = 5

D. -3x = 12

-3(4) = 12

-12 = 12

E. x - x - x - x = -8

4 - 4 - 4 - 4 = -8

0 - 4 - 4 = -8

-4 - 4 = -8

-4 + (-4) = -8

-8 = -8

You might be interested in
Cada par de numeros esta a razon de 2:3
german

(0,8)+(7,-52) eso es la problema

4 0
3 years ago
Help please help help please please please
AnnZ [28]

Answer:

C. \frac{5}{4}

D. \frac{6}{7}

Step-by-step explanation:

C. 2 -  \frac{12}{16}

= 2 -  \frac{3}{4}

=  \frac{8 - 3}{4}

=  \frac{5}{4}

D. \frac{20}{22}  \times  \frac{33}{35}

=  \frac{10}{11}  \times  \frac{33}{35}

= 10 \times  \frac{3}{35}

= 2 \times  \frac{3}{7}

=  \frac{6}{7}

3 0
3 years ago
1.what is a sports car average acceleration if it can go from 0m/s to 27m/s in 6.0 seconds?
Flauer [41]

Answer:

1.4.5m/s^2

2.6.25m/s^2

3.15m/s^2

4.0.05m/s^2

Step-by-step explanation:

a=v-u

----

t

27-0

------ = 27/6

6

=4.5m/s^2

u=4.5m/s

v=24.5m/s

t=3.2s

(24.5-4.5)÷3.2

=20/3.2

=6.25m/s^2

v=80m/s

u=50m/s

t=2s

(80-50)÷2

15m/s^2

v=0.80m/s

u=0.50m/s

t=6s

(0.80-0.50)÷6

=0.05m/s^2

5 0
2 years ago
Can you simplify 3/r + 7/r+3
Nutka1998 [239]
Combine the fractions by finding a common denominator. 
10r+9/r(r+3)
7 0
3 years ago
Write a subtraction sentence using integers. Then write the equivalent addition sentence and explain how to find the sum.
Rasek [7]
The difference of five and negative 7. <span><span>
1.       </span>Which becomes 5 – (-1) =  6. Such that 5 + 1 = 6.</span> The total number of fruits available.

Three hundred apples minus thirty oranges.
<span><span>1.       </span>300 – 30 =  270 fruits</span>

The room temperature of thirty degrees Celsius has risen to fourty-five degrees Celsius. What is the difference of the final and initial temperatures? <span><span>
1.       </span>45 – 30 = 15</span>

When the ball rose with an acceleration of 2 m/s2 what is the difference between the ball’s acceleration and the gravitational force that acted on it? <span><span>
1.       </span>-10 - 2 = -12 </span>



6 0
3 years ago
Other questions:
  • At a sale this week, a desk is being sold for
    9·1 answer
  • Will give brainliest!
    6·1 answer
  • Find the slope of the line on the graph. Write your answer as a fraction or a whole number, not a mixed number or decimal.
    5·2 answers
  • The expression 3 × 7 – 4 × 8 + 2 is equivalent
    9·2 answers
  • Determine the fraction of total interest owed using the rule of 78.
    5·1 answer
  • What is the vertex of the quadratic function f(x) = (x - 3)(x - 2)?
    13·1 answer
  • Is 0.5 100 times 50(I really need help)
    9·1 answer
  • PLEASE HELP :( I WILL GIVE BRAINLIEST ANYTHING
    7·1 answer
  • I just need the answer pls
    13·1 answer
  • A store owner will order iPads for local schools. The relationship between x, the number of boxes he will order, and y, the numb
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!