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lozanna [386]
3 years ago
13

the sum of two number is 21. The larger number is 6 less than twice the smaller number. Find the two numbers.

Mathematics
1 answer:
Natalka [10]3 years ago
6 0

Answer:

7.5 is the large number and 6.75 is the smaller number

Step-by-step explanation:

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I PROMISE BRAINLIST; 5-STARS; THANKS!! IT'S VERY SIMPLE; BELIEVE ME!!!!!
DochEvi [55]

Answer:

2. B

3. C

4. B

5. D

Step-by-step explanation:

2) The sequence is multiplying by -2 each time. This means that it is geometric.

The next two terms would be:

32*-2=-64\\-64*-2=128\\128*-2=-256

This means that the answer is B

3) The sequence is being multiplied by \frac{1}{3} each time. This means that it is geometric.

The next 3 terms would be:

3*\frac{1}{3} =1 \\\\1*\frac{1}{3} =\frac{1}{3} \\\\\frac{1}{3} *\frac{1}{3} =\frac{1}{9}

I am assuming that the answer is C and that you were unable to type the fractions.

4) We know that the common difference is 1.5, so that is the coefficient of our variable and the starting value is 15. This means that we can write an equation as follows

f(x)=1.5(x-1)+15

Now we can find the first 4 terms

f(1)=15.0\\f(2)=16.5\\f(3)=18.0\\f(4)=19.5

This would mean that the answer is B

5) We know that this is a geometric series, we know the common ratio, and we know the first term. This means we can write the equation as follows

f(x)=4.5(10)^{x-1}

Now we can find the first 4 terms

f(1)=4.5\\f(2)=45\\f(3)=450\\f(4)=4500

Unless you meant that the ratio was \frac{1}{10}, the answer is D, none of the above

7 0
3 years ago
Complete sequence. 4.15, 6.30, 8.45. How do I get answer?
azamat
They are going up by 2.15
6 0
3 years ago
Read 2 more answers
Uhh- i need some help with this-
MAVERICK [17]

It is 36*4= 144  That is the answer for both corecction 214

8 0
3 years ago
Read 2 more answers
Y=3(x+1)(x-5)<br><br> Explain how to solve these quadratics.
olya-2409 [2.1K]
Y=3(x+1)(x-5)
I'm going to ignore 3 for now, but will add it later.
FOIL the (x+1)(x-5)
F = multiply the First numbers      x and x
O = multiply the Outside numbers      x and -5
I = multiply the Inside number        1 and x
L = multiply the Last numbers        1 and -5
3(x^2 + -5x + 1x + -5)
add -5x and x
3(x^2 + -4x + -5)
multiply the numbers inside the parenthesis by 3
3x^2 + -12x + -15
5 0
3 years ago
What percent is equivalent to the fraction and decimal below? Enter your
adoni [48]

Answer:

Percent = 20%

Step-by-step explanation:

Since we have a decimal form of 2/10, we can turn it into percentage by multiplying 0.20 by 100.

=> 0.20 by 100

=> 20%

Therefore, 20% is our answer.

Hoped this helped.

4 0
2 years ago
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