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2 years ago

__ + 15 - 15 = 21 what is the blank number

Mathematics

2 answers:

saw5 [17]2 years ago

7 0

Answer:

Step-by-step explanation:

21 is the blank number as +15 and -15 cancels out

pickupchik [31]2 years ago

6 0

Answer:

the answer is 21

Step-by-step explanation:

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Which system of inequalities has no solution ? I’m not sure

Zanzabum

I think the answer might be c

3 0

2 years ago

*NO 194 39% 13:08 Pilih jawaban yang paling tepat Segitiga PQR dan segitiga XYZ 5 poin merupakan dua segitiga yang kongruen. Bes

Illusion [34]

Answer:

Option d. PQ = YZ

Step-by-step explanation:

The question in English is

Choose the most appropriate answer. The PQR triangle and the XYZ triangle are two congruent triangles. The angle P = the angle Y and PR = YX. Side pairs of the same length are ... a. PQ = XZ b. QR = YZ c. QR = XY d. PQ = YZ

we know that

If two triangles are congruent, then its corresponding sides and its corresponding angles are congruent

Corresponding sides are named using pairs of letters in the same position on either side of the congruence statement

we have that

$m\angle P=m\angle Y$

$PR=YX$

Triangle PQR is congruent with Triangle YZX

That means

Corresponding angles

$m\angle P=m\angle Y$

$m\angle Q=m\angle Z$

$m\angle R=m\angle X$

Corresponding sides

$PQ=YZ\\QR=ZX\\PR=YX$

8 0

2 years ago

Find the degree of the polynomial: 5ab^3−7a^5c^2−5

alexandr402 [8]

Answer:

I think its 5

Step-by-step explanation:

6 0

2 years ago

Find the distance travelled by Rubina if she takes 4 rounds of rectangular park whose length and breadth is 45m and 30m

ANTONII [103]

Length (l) = 45 m
Breadth (b) = 30 m
We know, perimeter of a rectangle = 2(length + breadth)
Therefore, perimeter of the rectangle
= 2(I + b)
= 2(45 + 30) m
= 2 × 75 m
= 150 m
So, the distance travelled by Rubina
= 4 × 150 m
= 600 m

Answer:

The distance travelled by Rubina is 600 m.

Hope you could get an idea from here.

Doubt clarification - use comment section.

5 0

2 years ago

The formula for glue says add 45 mL of Hardner to each container of resin how much Hardner should be added to 18 containers of r

Luden [163]

Answer:

810 mL of hardener

Step-by-step explanation:

You need 45 mL of hardener for each container and you have 18 containers so:

45 x 18 = 810 mL

7 0

3 years ago