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telo118 [61]
3 years ago
5

Solve -8- 21 + 10x=61

Mathematics
1 answer:
lozanna [386]3 years ago
4 0

Answer:

Hello! :) I hope I am correct!!

Step-by-step explanation:

The answer would be: x=9

(Below is how I got ‘x=9’)

Here are the steps to solve this problem/equation.

1. Simplify both sides to the equation.

⇒10x +-21=61

⇒10x -29=61

2. Now add 29 to both of the sides

⇒ (you will end up with: 10x=90

3. And finally you divide both sides by 10

⇒ so x=9

Hope this helps!

By; BrainlyAnime

(I attached a picture of another way to solve this problem/equation!)

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Find the percent of decrease from 6 to 5.
lozanna [386]

Answer:

Use this

Step-by-step explanation:

3 0
3 years ago
At a concession stand, five hot dog(s) and two hamburger(s) cost $11.75; two hot dog(s) and five hamburger(s) cost $11.00. Find
serg [7]

Answer:

x:hot dogs

y: hamburger

5x + 2y = 11.75

2x + 5y = 11.00

10x + 4y = 23.50

-10x - 25y = -55.00

-21y = -31.50

y = $1.50 each hamburger

2x + 5(1.50)= 11.00

2x + 7.50 = 11.00

2x = $3.50

x = $1.75 each hot dog

8 0
3 years ago
Based on a​ survey, assume that 43​% of consumers are comfortable having drones deliver their purchases. Suppose that we want to
lutik1710 [3]

Answer:

The probability that exactly three of them are comfortable with delivery by drones is 0.2583.

Step-by-step explanation:

Let <em>X</em> = number of consumers comfortable having drones deliver their purchases.

The probability of the random variable <em>X</em> is, P (X) = <em>p</em> = 0.43.

Then <em>q</em> is, <em>q</em> = 1 - p

A sample of <em>n</em> = 5 consumers are selected.

The random variable <em>X</em> follows a Binomial distribution with parameters <em>n</em> and <em>p</em>.

The pmf of <em>X</em> is:

P(X=x)={n\choose x}p^{x}(1-p)^{n-x};\ x=0,1,2,3...

Compute the value of P (X = 3) as follows:

P(X=3)={5\choose 3}0.43^{3}(1-0.43)^{5-3}\\=10\times 0.079507\times 0.3249\\=0.258318\\\approx0.2583

Thus, the probability that exactly three of them are comfortable with delivery by drones is 0.2583.

6 0
3 years ago
Please also show the steps to get the answer
Natasha_Volkova [10]

Answer:

95 degrees

Step-by-step explanation:

Angle S is 95 so arc QR = 95×2 = 190

Total arc is 360 degree

Now to find arc QS

arc QS + arc SR + arc QR =360

arc QR + 75 + 190 =360

arc QR = 360- 265

arc QR = 95 degrees

7 0
3 years ago
a rectangular prism is 5 meters long, 2 meters wide, and 2 meters high. what is the sureface area of this prism in square inches
Vanyuwa [196]

Answer:

20 square inches

4 0
3 years ago
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