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saul85 [17]
4 years ago
11

3x + 4 = 19 solve the equation check the solution

Mathematics
2 answers:
VARVARA [1.3K]4 years ago
6 0
Subtract 4 from both sides to get 3x = 15.

Divide by 3 on both sides to get x = 5.

Plug this back in.

3(5) + 4 = 19. 
15 + 4 = 19.
19 = 19
Mariulka [41]4 years ago
6 0
3x + 4 = 19

Take away 4 from both sides:
3x = 15

Divide both sides by 3:
x = 5

Answer: x = 5


<u>To check</u>, we plug x = 5 into the equation:
3x + 4 = 19
3(5) + 4 = 19
19 = 19 (<span>✓ correct)</span>

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Find the area of the triangle in blocks (b).
olganol [36]

Answer:

12

Step-by-step explanation:

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What is the range for this set of data?<br><br> 7, 15, 12
coldgirl [10]

Answer:

The answer would be eight.

Step-by-step explanation:

The range is the difference between the largest and smallest number you need to make sure you have them in order or it won’t work.

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Simplify the expression k-2(k-(2-k))-2
Reil [10]
Simplify the following:
k - 2 (k - (2 - k)) - 2
-(2 - k) = k - 2:
k - 2 (k + k - 2) - 2
Grouping like terms, k + k - 2 = (k + k) - 2:
k - 2 ((k + k) - 2) - 2
k + k = 2 k:
k - 2 (2 k - 2) - 2
-2 (2 k - 2) = 4 - 4 k:
k + 4 - 4 k - 2
Grouping like terms, k - 4 k - 2 + 4 = (4 - 2) + (k - 4 k):
(4 - 2) + (k - 4 k)
k - 4 k = -3 k:
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3 0
4 years ago
Read 2 more answers
On the day that Tony was born his grandmother invested $2200 in a certificate of deposit that pays a 3% interest
galben [10]

Answer:

$3530.3541

Step-by-step explanation:

Given that:

Principal = 2200

Interest rate compounded annually (r) = 3%

Time (t) = 16 years

Using the compound interest formula :

A = P(1 + r/n)^n*t

A = final amount

n = number of times interest is applied per period

A = 2200(1 + 0.03)^16

A = 2200(1.03)^16

A = 2200 * 1.60470643909878751793

A = $3530.3541

Hence, amount in account on his 16th birthday will be $3530. 3541

3 0
3 years ago
A single card is drawn from a standard 52-card deck. find the conditional probability that the card is a club, given that it is
Ghella [55]

The probability of getting a Club given that the card is a Ten is 0.25.

According to the statement

we have given that the there is a deck of the 52 cards and we have to find the conditional probability that the card is a club and the given card is a 10 number card.

So, For this purpose we know that the

Conditional probability is a measure of the probability of an event occurring, given that another event has already occurred.

And according to this,

The probability P is

P(Club) = 13/52 = 1/4

P(Ten) = 4/52 = 1/13

P(Club and Ten) = (1/4)(1/13) = 1/52

And we know that the

P(Club|Ten) = P(Club and Ten)/P(Ten)

And then substitute the values and it become

= (1/52)/(1/13) = (1/52)(13/1)

= 13/52 = 1/4

= 0.25

So, The probability of getting a Club given that the card is a Ten is 0.25.

Learn more about probability  here

brainly.com/question/24756209

#SPJ4

6 0
2 years ago
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