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SVEN [57.7K]
3 years ago
9

M m find the value of x

Mathematics
1 answer:
Lorico [155]3 years ago
3 0
If A and J are complementary angles, that means that when they are added together, they equal 90 degrees. We can set up the equation 5x+30+4x+15=90.

5x+30+4x+15=90
9x+45=90
9x=45
x=5

:)
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i bought 3 small tapas dishes and 2 large ones on a visit to café ba-ba-reeba and. spent $14. I went back another day and got 4
satela [25.4K]
The small dish costs $2 each and the large dish costs $4 each,

2(3)+4(2)=6+8=14

2(4)+4(1)=8+4=12
5 0
3 years ago
A pharmaceutical company receives large shipments of aspirin tablets. The acceptance sampling plan is to randomly select and tes
DerKrebs [107]

Answer:

a) The probability that this whole shipment will be​ accepted is 30%.

b) Many of the shipments with this rate of defective aspirin tablets will be rejected.

Step-by-step explanation:

We have a shipment of 3000 aspirin tablets, with a 5% rate of defects.

We select a sample of size 48 and test for defectives.

If more than one aspirin is defective, the batch is rejected.

The amount of defective aspirin tablets X can be modeled as a binomial distribution random variable, with p=0.55 and n=48

We have to calculate the probabilities that X is equal or less than 1: P(X≤1).

P(X\leq1)=P(X=0)+P(X=1)\\\\\\P(0)=\binom{48}{0}(0.05)^0(0.95)^{48}=1*1*0.0853=0.0853\\\\\\P(1)=\binom{48}{1}(0.05)^1(0.95)^{47}=48*0.05*0.0897=0.2154\\\\\\P(X\eq1)=0.0853+0.2154=0.3007

8 0
3 years ago
the second of two number is 6 more than 3 times the first. The sum of the two number is 30. Find the two numbers​
pantera1 [17]

Answer:

kinda hard

Step-by-step explanation:

7 0
3 years ago
PLEASE HELP I WILL GIFT 100 POINTS ASAP Which represents The variable in the following number sentence.
lesya692 [45]

Answer:

I think that would be R

Step-by-step explanation:

A Variable is a symbol for a number we don't know yet. It is usually a letter like x or y. A number on its own is called a Constant.

6 0
3 years ago
To get a B in math Katie must average 80 on 5 tests. Scores on her first 4 tests were 88, 71, 64 and 90. What is the lowest scor
sesenic [268]

Answer:

88

Step-by-step explanation:

you add all of her scores which is 313

then you divide by 4 to get 78.35

find the amount you need to bring the average up by calculateing different grades

3 0
3 years ago
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