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Law Incorporation [45]
3 years ago
6

Mark is six years younger than his sister Teri. Their combined ages equals 86. How old are Mark and Teri?

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
3 0

Answer:

Mark is 30 and Teri 36

Step-by-step explanation:

I suck at explaining things but here's and answer :)

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Convert 0.9375 to a fraction
Eddi Din [679]

Answer:

15/16

Step-by-step explanation:

4 0
3 years ago
Donnie's dad is 3 times older than Donnie, and the sum of their ages is no less than 56. What is the youngest that Donnie can be
Gala2k [10]

Answer:

14

Step-by-step explanation:

If Donnie is 3 times younger than Donnie's dad, that adds up to four parts. In other words, Donnie is 1/4 his dads age. So, divide 56 by four and you have Donnie's age. The rest is Donnie's dad age.

4 0
3 years ago
The sum of the interior angles of Michael’s polygon equals 180°. The sum of the interior angles of Cary’s polygon equals 360°. H
Lady_Fox [76]
Recall that for a polygon to have 180° as the sum of its interior angles, then it must have three sides and thus a triangle. And similarly, for a polygon to have a sum of 360°, it must have four sides or it is a quadrilateral.

[Note that for larger angles, we can apply the formula 180(n - 2) to find the total sum of the interior angles. n is the number of sides]

Now, since we're comparing a four-sided and three-sided polygon, this means that they only differ by 1 side. 

Answer: A. 1 side
8 0
3 years ago
2/3y=-3x-9 pleaseeeeeeeeee
charle [14.2K]
The slope is -4.500
Hope this helped :)
3 0
3 years ago
Find the value of y...​
soldier1979 [14.2K]

Answer:

y=0

Step-by-step explanation:

Rewrite Evaluate Powers:

33^{2y-1}+3^{-1}+2*3^{y}*3^{-1}=1

Calculate:

(3^{y})^{2}*\frac{1}{3} +2*3^{y}*\frac{1}{3}=1

Solve using substitution:

(3^{y})^{2}*\frac{1}{3} +\frac{2}{3} *3^{y}=1     t=3^{y}

Solve the equation for t:

t^{2}*\frac{1}{3}+\frac{2}{3}t=1

t=-3

t=1

Substitute back to t=3^y

3^y=-3

3^y=1

y∉R

3^{y}=1

y=0

5 0
3 years ago
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