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klasskru [66]
3 years ago
11

What is the value of X?

Mathematics
2 answers:
Greeley [361]3 years ago
8 0

Answer:

5

Step-by-step explanation:

x-3+7=2x-1

x+4=2x-1

Subtract x from both sides:

4=x-1

Add 1 to both sides:

x=5

Hope this helps!

otez555 [7]3 years ago
6 0

Answer:

<em><u>5   is the answre</u></em>

 vvvv    here is how I got it!

x - 3 + 7 = 2x - 1

becomes

x + 4 = 2x - 1

becomes

4=x-1

becomes

x=5

Brainliest plz

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PLease help! this is geometry circles stuff
melamori03 [73]

Answer:

15 degreese

Step-by-step explanation:

Given AOB 30 - has to make angle DOB 150 cause that be 180 since DA is the diameter

Also they say DE is the same as EK - 30

now EKA is 180 but you got to subtract that EK 30 = 150

to find C you do 1/2 ( ABD - KA )

1/2 (180 - 150)

is 15

4 0
3 years ago
How many solutions does the equation have?<br> -9 = |d+4|
bezimeni [28]

Answer:

2 solutions

Step-by-step explanation:

Set up a system of equations. The absolute value produces two equations because one answer will be negative and the other positive.

d + 4 = -9

d + 4 = 9

So...

d = -13

d = 5

7 0
3 years ago
A virus is very small compared to a human blood cell. A virus is about 0.0000009 meters. What is that in scientific notation?
Mkey [24]

Answer:

mark me brainliest

Step-by-step explanation:

9 x 10 *-6

3 0
3 years ago
A number is multiplied by 3. if 2 is added to the product you get 17. what is the number
Sveta_85 [38]
The answer is 5
5 \times 3 = 15 \\ 15 + 2 = 17
4 0
3 years ago
According to the National Oceanic and Atmospheric Administration, the blue whale is the largest animal on Earth. Blue whales wei
never [62]

Answer: The blue whale's weight is 150 times heavier than the narwhal's weight.

Step-by-step explanation:

Given: Weight of Blue whale = 3\times10^5\text{ pounds}

Weight of Narwhal = 2\times10^3\text{ pounds}

Number of times blue whale's weight  is heavier than the narwhal's weight = =\dfrac{\text{Weight of Blue whale}}{\text{Weight of Narwhal }}

=\dfrac{3\times10^5}{2\times10^3}\\\\=1.5\times10^{5-3}\ \ \ [\dfrac{a^m}{a^n}=a^{m-n}]\\\\=1.5\times10^2\\\\=1.5\times100=150

Hence, the blue whale's weight is 150 times heavier than the narwhal's weight.

5 0
2 years ago
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