3 years ago

Which number is in the solution set of this equation? 7x − 9 = 40

Mathematics

2 answers:

Andrei [34K]3 years ago

7 0

Answer:

Steps:

7x − 9 = 40

7x = 40 + 9

x = 49/7

x = 7

Alekssandra [29.7K]3 years ago

6 0

Answer:

x=7

Step-by-step explanation:

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Acellus

vazorg [7]

I believe it would be 5.

if you plug in five to both equations:

h=5+11
h=3(5)+1

they both equal 16. so they will both have 16 hats after 5 months. :-)

5 0

3 years ago

Need help pls geometry question

Furkat [3]

Answer:

55.94°

Step-by-step explanation:

Reference angle = x

Hyp = 25

Adjacent = 14

Apply CAH:

$Cos(x) = \frac{Adj}{Hyp}$

$Cos(x) = \frac{14}{25}$

$x = Cos^{-1}(\frac{14}{25})$

x = 55.9442023° ≈ 55.94° (to 2 d.p)

7 0

3 years ago

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DedPeter [7]

Answer:

169

Step-by-step explanation:

13²

=169

6 0

3 years ago

Angle one and two<br> add up to 100, if<br> angle one is 2x and<br> angle two is 3x, what<br> is x?

kifflom [539]

Answer:

$angle \: 1 = 2x \\ angle 2 = 3x \\ sum = 1 00 \\ 2x + 3x = 100 \\ 5x = 100 \\ divide \: both \: side \: by \: 5 \\ \frac{5x}{5} = \frac{100}{5} \\ x = 20$

5 0

3 years ago

I need help with these 2 questions i don’t understand!

Gre4nikov [31]

Wouldn't you use sin, cos, tan?

6 0

3 years ago

Read 2 more answers