3 years ago

Vhat is the value of a in the equation 3 a+b=54, when b = 9? O 15 O 18 O 21 0 27

Mathematics

2 answers:

seraphim [82]3 years ago

6 0

A+9=54
U can rewrite
a= 54-9
So a=45

solmaris [256]3 years ago

6 0

3a+ b = 54
3a + (9) = 54
-9. -9
3a= 45
\3 \3

A= 14

The value of “a” is 15

You might be interested in

I need help plssss so yeh ill mark brainleist

padilas [110]

Answer:

2. $\frac{1}{40}$

4. $\frac{5}{48}$

6. $\frac{1}{45}$

8. $\frac{1}{8}$

10. $\frac{1}{35}$

12. $\frac{3}{10}$

14. $\frac{11}{72}$

16. $\frac{5}{32}$

4 0

2 years ago

Read 2 more answers

Plz help me with Q:13 And Q:14

PolarNik [594]

For question 13, you need to look at all the numbers that are less than 1/2 and then count the number of marks in total .
Answer: 7 B
For question 14, you need to first make an equation that suits the circumstances and the situations in this problem.
$25+$24x=$193
$24x=$168
x=7 weeks
x stands for the number of weeks that she has to wait for in order to save enough money to purchase the camera.
Answer: 7 weeks A

5 0

3 years ago

Read 2 more answers

Insert grouping symbols in 5 x 2 + 8 - 4 - 2 so that its value is 15

Arlecino [84]

5×2+8-4+1=15
cause
5×2=10
10+8=18
18-4=14
14+1=15

5 0

3 years ago

What is the area of triangle abc below? If necessary, round your answer to two decimal places..... PLEASE PLEASE HELP ME

antiseptic1488 [7]

For a triangle:
$A=\frac{bh}{2}$
$A=\frac{b \times 7.9}{2}$
$b=AD+DC$
Use Pythagorean theorem twice:
$AD^{2}+9.4^{2}=7.9^{2}$
$AD=5.09$

$DC^{2}+23.2^{2}=7.9^{2}$
$DC=21.81$

Thus:
$b=26.9$

And:
$Area=\frac{26.9 \times 7.9}{2}=106.26$

6 0

3 years ago

–10p = –11p − 15<br> What is the answer

tensa zangetsu [6.8K]

Answer: p = −15

Step-by-step explanation:

Add 11p to both sides.

−10p+11p=−11p−15+11p

p=−15

4 0

3 years ago

Read 2 more answers