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Darina [25.2K]
3 years ago
6

20. Solve the equation. Show your work. 45 = 3b + 69

Mathematics
1 answer:
valkas [14]3 years ago
8 0
1. 3b + 69 = 45
2. 3b = 45 - 69
3. 3b = -24
4. 3b/3 = -24
5. b = -24/3
6. b = -8
answer is b = -8
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Margo has $80 to spend. She wants to buy
ivolga24 [154]

Answer:

The greates amount she could buy is 4

8 0
3 years ago
Cyrus, Ray and Billy visited the playground where their friends made a triangle out of string 9.5 m, 10.0 m, and 10.5 m long, an
Mkey [24]

Answer:

Billy next to the 65 degree angle

Ray next to the 60 degree angle

Cyrus next to the 55 degree angle

if we were to put this into A squared + B squared = C squared it would be Cyrus squared + Ray squared = Billy squared  

Also lol Billy Ray Cyrus (Miley Cyrus Dad)

Explaination:

It literally says it right here "Cyrus to stand by the 55o angle, Ray by the 60o angle, and Billy by the 65o angle. Determine which vertex each boy should stand next to."

3 0
4 years ago
On a given Monday, the probability of rain is 0.72, the probability that the maximum temperature for the day will exceed 75°F is
elena55 [62]
We know that
the addition rule states that
 P(A or B) = P(A) + P(B) − P(A and B)
in this problem
P(A)=0.72
P(B)=0.84
P(A and B)=0.64
so
 P(A or B) = P(A) + P(B) − P(A and B)-----> 0.72+0.84-0.64
 P(A or B) = 0.92

the answer is
0.92 (92%)

4 0
3 years ago
Read 2 more answers
A textbook has 500 pages on which typographical errors could occur. Suppose that there are exactly 10 such errors randomly locat
DiKsa [7]

Answer:

The probability of a  selection of 50 pages will contain no errors  is  0.368

The probability that the selection of the random pages will contain at least two errors is 0.2644

Step-by-step explanation:

From the information given:

Let q represent the no of typographical errors.

Suppose that there are exactly 10 such errors randomly located on a textbook of 500 pages. Let \mu be the random variable that follows a Poisson distribution, then mean \mu = \dfrac{10}{500}= 0.02

and the mean that the random selection of 50 pages will contain no error is \lambda = 50 \times 0.02 =1

∴

Pr(q= 0) = \dfrac{e^{-1} (1)^0}{0!}

Pr(q =0) = 0.368

The probability of a  selection of 50 pages will contain no errors  is  0.368

The probability that 50 randomly page contains at least 2 errors is computed as follows:

P(X ≥ 2) = 1 - P( X < 2)

P(X ≥ 2) = 1 - [ P(X = 0) + P (X =1 )]    since it is less than 2

P(X \geq 2) = 1 - [ \dfrac{e^{-1} 1^0}{0!} +\dfrac{e^{-1} 1^1}{1!} ]

P(X \geq 2) = 1 - [0.3678 +0.3678]

P(X \geq 2) = 1 -0.7356

P(X ≥ 2) = 0.2644

The probability that the selection of the random pages will contain at least two errors is 0.2644

6 0
4 years ago
Which equation is equivalent to the given equation? 7m+11=-4(2m+3)
Vladimir [108]

Answer/Step-by-step explanation:

7m + 11 = -4(2m + 3)

<u>Use distributive property:</u>

7m + 11 = -8m - 12

<em>Therefore the equations are equivilent!</em>

<h2><u><em>Will gladly take Brainliest, please!!!</em></u><em> =D</em></h2>

8 0
3 years ago
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