Using a Protractor..
It's a little plastic half circle thingy with angle measurements on it.
see image below
It's a little plastic half circle thingy with angle measurements on it.
see image below
HELPPPP FASTTTTTT PLZZZ
1 answer:
The unknown length, x, in the smaller quadrilateral is 3 cm
<em><u>Solution:</u></em>
Given that,
<em><u>The proportion can be solved to find the unknown length , x, in the smaller quadrilateral</u></em>
<em><u>Given proportion is:</u></em>
We have to find the value of "x"
From given proportion,
Cross multiply the numerator of left side fraction with denominator of right side fraction
Multiply the numerator of right side fraction with denominator of left side fraction
Solve for x
Thus unknown length, x, in the smaller quadrilateral is 3 cm
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Answer:
D. (10, 15)
Step-by-step explanation:
Hi there!
We are given the following system:
+y=20
x+4y=70
And we want to solve it (find the values of x and y).
Let's use substitution for this problem, where we will isolate one variable on one side, while the other side contains an expression with the other variable. Then, we use the expression to solve for the variable that the expression contains, then use the value of that variable to solve for the aforementioned isolated variable.
Subtract from both sides in the first equation
y=20-
Now substitute 20- as y in x+4y=70
x+4(20-)=70
Do the distributive property
x+80-2x=70
Combine like terms on the left
-x+80=70
Subtract 80 from both sides
-x=-10
Multiply both sides by -1
x=10
We found the value of x. Now let's use that value to find what y is
Since we know that y=20- and x=10, we can substitute 10 as the value of x to solve for y
In that case,
y=20-(10)
Multiply
y=20-5
Subtract
y=15
The answer is x=10, y=15, or as a point, <u>(10, 15), aka D</u>
Hope this helps!