2 years ago

20a + 158 +6c = 20 (6) + 15 (4) + 6(8) + ? + ?

Mathematics

1 answer:

Jobisdone [24]2 years ago

7 0

Step-by-step explanation:

20a + 158+6c=you will expand the brackets

= so it is 120+60+48

20a+158+6c=120+60+48

20a+ 6c=120+60+48-158

20a+6c=70

20a divide by 20+6c divide by 6 on both side

a + c = 0.58

You might be interested in

Simplify sin^2y/sec^2 y−1 to a single trigonometric function

liubo4ka [24]

Answer:

$\frac{ { \sin}^{2} y}{ { \sec}^{2}y - 1 } = { \cos }^{2} y$

Step-by-step explanation:

We know that ${ \tan }^{2} y = { \sec }^{2} y - 1$

Also , ${ \tan}^{2} y = \frac{ { \sin }^{2} y}{ { \cos }^{2}y }$

So ,

$\frac{ { \sin }^{2}y }{ { \sec }^{2}y - 1 } = \frac{ { \sin}^{2} y}{ { \tan }^{2} y} = \frac{ { \sin }^{2}y }{ \frac{ { \sin}^{2} y}{ { \cos}^{2}y } } = { \cos }^{2} y$

6 0

2 years ago

How will you know if the function is exponential given its equation?

Mashcka [7]

Answer: the "m" value (if using y=mx+b) will have" x" as an exponent

3 0

2 years ago

Read 2 more answers

Order these from least to greatest. -13/8, -2.1, -26/13, -9/4 I know how to do this I'm just to lazy too and I want to chat.

oksian1 [2.3K]

-9/4, -2.1 , -26/13, -13/8 you can double check by inserting all these into a calculator so u can see in decimal form and basically the bigger the number that’s negative the less value it is (sorry that’s kind of a bad explanation but i hope this helps :) )

8 0

2 years ago

Read 2 more answers

Jason has 60 cars. 30% is blue. How many are blue?

Dmitriy789 [7]

So to figure out 10% of this would be to remove the 0. that would be six. since 30÷10 is 3, we have to do 6×3. that would be 18, so 30% of 60 is 18

5 0

2 years ago

Read 2 more answers

If a sled cost 99.50, and the markup is 95%, what's the selling price?

Mamont248 [21]

It is $94.52
99.5% of 100=

6 0

2 years ago