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Bogdan [553]
3 years ago
5

What is the unknown number that makes the equation true?

Mathematics
2 answers:
S_A_V [24]3 years ago
8 0
The answer is A 1,200
DerKrebs [107]3 years ago
5 0

Answer:

The answer is a. hope this helps :)

Step-by-step explanation:

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3c-d=T<br> Could you<br> solve for c
RSB [31]
- - Let's solve for C.

Starting off with our equation:
3c+d=T

Transform:
3c=T+D

Solve for that:
\frac{3c}{3} = \frac{T+D}{3}


Solve for that for the last time and your answer is \frac{T+D}{3} =C



7 0
3 years ago
Read 2 more answers
So I need help pls show ur work
Ad libitum [116K]

Answer:

x = – ⅓

Step-by-step explanation:

The solution to the expression can be obtained as follow:

–3.1x + 7 – 7.4x = 1.5x – 6(x – 3/2)

Clear bracket

–3.1x + 7 – 7.4x = 1.5x – 6x + 9

–3.1x – 7.4x + 7 = –4.5x + 9

–10.5x + 7 = –4.5x + 9

Collect like terms

–10.5x + 4.5x = 9 – 7

–6x = 2

Divide both side by –6

x = 2 / –6

x = – ⅓

Thus, the solution to the equation is –⅓

7 0
3 years ago
Show that the equation 2x + 3 cos x + e ^ x = 0 has a root on the interval [- 1, 0]
ExtremeBDS [4]

If <em>x</em> = -1, you have

2(-1) + 3 cos(-1) + <em>e</em> ⁻¹ ≈ -0.0112136 < 0

and if <em>x</em> = 0, you have

2(0) + 3 cos(0) + <em>e</em> ⁰ = 4 > 0

The function <em>f(x)</em> = 2<em>x</em> + 3 cos(<em>x</em>) + <em>eˣ</em> is continuous over the real numbers, so the intermediate value theorem applies, and it says that there is some -1 < <em>c</em> < 0 such that <em>f(c)</em> = 0.

5 0
3 years ago
Evelyn drinks 8 glasses of water,which is 56 glasses of water a week.How many glasses of water does she drink in a year?(1 year
Sav [38]
Evelyn drinks 2,912 glasses of water a year.
7 0
3 years ago
Read 2 more answers
The perimeter of a 14 ft , 8 ft rectangle
lara [203]

Answer:44 ft

Step-by-step explanation:

P=2(l+w)

P=2(14+8)

P=2(22)

P=44

4 0
3 years ago
Read 2 more answers
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