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valentina_108 [34]
3 years ago
5

In an isosceles triangle the congruent sides are each 5 cm long the base is 8 cm what is the area in square centimeters of the t

riangle
Mathematics
2 answers:
Oduvanchick [21]3 years ago
7 0
1/2 • 8 • 5
= 20 cm square
Anna35 [415]3 years ago
4 0
A would equal 20 because half of 8 is 4. 4 multiplied by 5 is 20
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Solve for x and y: 7y−5x=31 & x=4−2y
horrorfan [7]
7*y - 5*(4-2y) = 7y - 20 +10y = 17y-20 = 31,

y =3, x = -2.

Weird 20 min without answer!
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Can someone answers this question please master it correctly if it’s corect I will mark you brainliest
GarryVolchara [31]

Answer:

4 bowlers

Step-by-step explanation:

There are 18 different hats, 6 are bowlers

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1 bowler out of 3 hats

4 bowlers out of 12 hats

<h3><u><em>Hope this helps!!!</em></u></h3>

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3 years ago
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5 0
2 years ago
Distinguish whether the ordered pair (16, -3) is a solution to:
sammy [17]
I believe you should try to plug in the ordered pair to see if the solutions work.

The ordered pair is (x,y) because x is on the x-axis and y is on the y-axis, therefore in (16,-3) the x=16 and y=-3.

Now substitute, meaning plug in those numbers into the equation.
For x+2y=10 would be 16+2(-3)=10
Now you just need to solve one side and see if it equals the other side.
16+2(-3)
First you use order of operations to solve this. PEMDAS. So you multiply 2(-3) first because of the parenthesis and it being multiplication.
16+(-6) and when you have a positive number adding a negative number it’s going backwards of the number line, basically meaning subtraction in a way. Sorry if this confuses you, if you already know how to do negatives and such nevermind this part.
But 16+(-6)=10
So now you look at both side of the equation, does the left side equal to the right? 10=10, so yes. It is a solution for that equation.

Now for the next equation, 7y=-21
Again, plug in the ordered pair (16,-3) into the equation. Remember that it’s (x,y).
There is no x in this equation so no need to worry about that; you only plug in y for this one.
7(-3) Now you multiply. Whenever you multiply a positive number and a negative number, the answer will always be negative. So 7(-3) is -21.
Now look if the left side is equivalent to the right. Does -21=-21? Yes. The ordered pair is a solution.

(16,-3) is a solution to both equations.

Hope this helps!
5 0
3 years ago
What is the final amount if 931 is decreased by 1% followed by a 1% increase?
earnstyle [38]

Answer:

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Step-by-step explanation:

931 x 99% = 921.69

921.69 x 101% = 930.9069

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3 years ago
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