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katovenus [111]
3 years ago
11

6.7 more than 5 times a number is 20

Mathematics
2 answers:
IrinaK [193]3 years ago
6 0
Subtract 6.7 from 20. This is 13.3. Divide 13.3/5 is 2.66. That is the answer
Wittaler [7]3 years ago
5 0

Answer:

the number is 2.66

Step-by-step explanation:

6.7+5x=20

Step 1. Subtract 6.7 from both sides

5x=20-6.7

5x=13.3

Step 2. Isolate the variable

\frac{5x}{5} =\frac{13.3}{5}

x=2.66

The number is 2.66

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This figure shows △XYZ . MZ¯¯¯¯¯¯ is the angle bisector of ∠YZX . What is XM ? Enter your answer, as a decimal, in the box. unit
astraxan [27]

Answer:

Length of XM is 5.5 units.

Step-by-step explanation:

Given △XYZ where MZ is the angle bisector of ∠YZX . we have to find the length of XM.

A triangle with vertices  X, Y, and Z. Side XZ is base. A line segment drawn from Z to M bisects ∠YZX into two parts ∠YZM and ∠XZM.

YZ=7 units, XZ=11 units and YM=3.5 units

By angle bisector theorem which states that an angle bisector of an angle divides the opposite side in two segments that are proportional to the another two sides of the triangle.

Hence, \frac{YM}{MX}=\frac{YZ}{XZ}

⇒ \frac{3.5}{MX}=\frac{7}{11}

⇒ MX=5.5 units.

Hence, length of XM is 5.5 units.


4 0
3 years ago
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Keri walks her dog every morning. The length of the walk is 0.55 kilometer on each weekday. On each weekend day the walk is 1.4
belka [17]

Answer:   b i think

Step-by-step explanation:

7 0
2 years ago
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Evaluate the algebraic expression for the given variable <br> -x- -3,x=-5
Dvinal [7]
Here u go, u replace x by the number

6 0
3 years ago
What is the first term of the geometric sequence whose fifth term is 1/24 and tenth term is 1/768
Neporo4naja [7]
An=a1r^(n-1)

given
a5=1/24
a10=1/768

we know that
a5=1/24=a1r^(5-1) and
a10=1/768=a1r^(10-1)

so
1/24=a1r^4
1/768=a1r^9

(a1r^9)/(a1r^4)=r^5=(1/768)/(1/24)=1/32

r^5=1/32
take 5th root of both sides
r=1/2

we have
a5=a1r^4=1/24
evaluate r^4 or (1/2)^4
1/16
a1(1/16)=1/24
times both sides by 16/1
a1=16/24
a1=2/3

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7 0
3 years ago
Solve the inequality:<br><br> 5x - 7 ≥ 3x + 9
erastova [34]

Answer:

x≥8

Step-by-step explanation:

3 0
3 years ago
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