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astra-53 [7]
3 years ago
5

What is 7x+6x because in math we are doing properties of operations and I need help with it and I don't know how to do it

Mathematics
2 answers:
julia-pushkina [17]3 years ago
5 0
You just add 6 and 7 then put the X after it. Since 7 and 6 both have an X after them you can add them because it’s considered combining like terms
Sloan [31]3 years ago
4 0

Answer:

13x

Step-by-step explanation:

7x+6x=13x. But since i do not have a second part of the question i can not tell you what x equals

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Which of the following theorems verified that angle xyz is congruent too angle uwv?
icang [17]

Answer:

Option B.  AA

Step-by-step explanation:

we know that

Angle-Angle (AA) Similarity Postulate, states that If two angles of one triangle are congruent to two angles of another, then the triangles must be similar

In this problem

<em>In the triangle XYZ</em>

∠X=70°

∠Y=90°

∠Z=90°-70°=20° (remember that angle X and angle Z are complementary)

<em>In the triangle UWV</em>

∠V=20°

∠W=90°

∠U=90°-20°=70° (remember that angle V and angle U are complementary)

therefore

Traingles XYZ and UWV are similar by AA Similarity Postulate

3 0
3 years ago
Oleta has five times as many pennies as quarters. Altogether she has $1.80 how many of each coin does she have
Vaselesa [24]
She has 45 pennies and 9 quarters


5:1

P:Q

0.01:0.15

0.05:0.15 0.1:0.3 0.15:0.45 0.2:0.6 0.25:0.75 0.3:0.9 0.35:1.05 0.4:1.2
0.45:1.35

8 0
3 years ago
9. Write the equation in standard form: 25x2 –16y2 = 400
mafiozo [28]

Answer:

25x^2 - 16y^2 - 400 = 0

Step-by-step explanation:

8 0
3 years ago
If AB=6x-7 and BC=5x-3 find AC
luda_lava [24]

Answer:

AC= AB+BC

= 6x-7+ 5x-3

= 11x-10

4 0
3 years ago
372 picoseconds equal to how many femoseconds
Vlad1618 [11]

Answer:

372,000 femtoseconds

Step-by-step explanation:

<u>1 picoseconds = 1000 femtoseconds</u>

372 picoseconds = 1000 * 372 femtoseconds

1000 * 372

372,000

Answer:  372,000 femtoseconds

5 0
3 years ago
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