Let
x--------> amount of erasers that Sari has
y--------> amount of erasers that Sam has
we know that
-------> equation
-----> equation
Substitute equation in equation
find the value of x
therefore
the answer is
Sari has erasers
Casey builds the gate shown to the right, with two solid triangular panels. Each support post runs 10 cm above and below the gat
e. Are the solid panels congruent? Explain
1 answer:
Answer:
Congruent
Step-by-step explanation:
There are two triangular panels ΔABC and ΔDBE used in the gate.
Since, ∠ABC ≅ ∠DBE [Given]
∠ACB ≅ ∠DBE [Given]
AB ≅ DE [Given]
Therefore, by AAS postulate of congruence, both the triangles will be congruent.
ΔABC ≅ ΔDBE
Hence, we can say that the solid panels used in the gate are congruent.
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Answer:
<em>The length of the side along the river is 140 m</em>
Step-by-step explanation:
<u>Equations</u>
To solve the problem, we need to recall the area of a trapezium is:
Where b1 and b2 are the lengths of the parallel sides and h is the height of the trapezium.
The field to be bought by Mohan has a trapezium shape with a side along the road of side x and a side along the river of side 2x, as stated in the problem.
Knowing the height is h=100 m, and the area is 10500 m2:
Simplifying:
Dividing by 150:
x = 70 m
2x = 140 m
The length of the side along the river is 140 m
60% of 35 is 21
Change the percentage (60) into a decimal by dividing it over 100:
Divide 21 by the decimal:
<span>
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Change the percentage (60) into a decimal by dividing it over 100:
Divide 21 by the decimal:
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