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Jobisdone [24]
3 years ago
14

Four time a number is 64 what is the number

Mathematics
2 answers:
AveGali [126]3 years ago
8 0
4 • x = 64
------- ---
4 4

x = 16
Oksanka [162]3 years ago
5 0
Method #1: Direct
64 divide 4 equal to 16.

Method #2: Algebra
Let c be the number.
4c=64
c=64/4=16
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gayaneshka [121]
I hope this helps you! Have a great day! :)

7 0
2 years ago
3/4x &lt; 33<br> Solve the inequality
slava [35]

answer:

x < 44

step-by-step explanation:

  • solve this like an equation

<u>3/4x < 33</u>

  • in order to solve this we can multiply this with the denominator first to cross out the fraction and be left with a whole number

3/4x < 33

3/4x(4) < 33(4)

3x < 132

x < 44

4 0
2 years ago
What are the missing angles?
iVinArrow [24]

Answer:

if ∠1 = 34°

then:

∠2 = 180 - 34 = 146° because it is supplementary to ∠1  (supplementary angles total 180°)

∠3 = 146° because it is a vertical angle of ∠2

∠4 = 34° because it is a vertical angle of ∠1

4 0
2 years ago
Read 2 more answers
determine the value of m and n for mx^3 +20x^2+ nx-36 when divided by (x+1) gives remainder 0 and when divided by (x-2) gives re
soldi70 [24.7K]

Given:

The given polynomial is

mx^3+20x^2+nx-36

When it divided by (x+1) gives remainder 0 and when divided by (x-2) gives remainder of 45.

To find:

The values of m and n.

Solution:

According to the remainder theorem, if a polynomial P(x) is divided by (x-c), then the remainder is P(c).

Let the given polynomial be P(x).

P(x)=mx^3+20x^2+nx-36

When it divided by (x+1) gives remainder 0. So, P(-1)=0.

P(-1)=m(-1)^3+20(-1)^2+n(-1)-36

0=-m+20-n-36

0=-m-n-16

m+n=-16                   ...(i)

When P(x) is divided by (x-2) gives remainder of 45. So, P(2)=0

m(2)^3+20(2)^2+n(2)-36=45

8m+80+2n-36=45

8m+2n+44=45

8m+2n=45-44

8m+2n=1                  ...(ii)

Multiply 2 on both sides of (i).

2m+2n=-32                   ...(iii)

Subtract (iii) from (ii).

6m=33

m=\dfrac{33}{6}

m=5.5

Putting m=5.5 in (i), we get

5.5+n=-16

n=-16-5.5

n=-21.5

Therefore, the values of m and n are 5.5 and -21.5 respectively.

7 0
2 years ago
Colin borrowed $500 from his brother who agreed to charge him 5% annually. How much will Collin owe his brother if he pays him b
kolbaska11 [484]

Answer:

$512.50

Step-by-step explanation:

500/100 = 5

5/2 = 2.5

100 + 2.5 = 102.5%

5 x 102.5 = $512.50

7 0
2 years ago
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