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Marina86 [1]
3 years ago
12

Which value in the replacement set is a solution to this equation?

Mathematics
1 answer:
Rashid [163]3 years ago
3 0
2n + 5 = 27

2 * 11 + 5 = 27
22 + 5 = 27
27 = 27


11 is the solution to this equation.
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13-5m=4-6m show work please
Vesna [10]
First subtract 4 from both sides
13 - 4 - 5m = - 6m

then simplify
9 - 5m = - 6m

add -5 to both sides
9 = - m

since a variable shouldn't be negative the answer should be
m = - 9

(I prefer having the variable on the left side)
4 0
2 years ago
7. In the accompanying diagram of rhombus CDEF, diagonal FD is drawn and the
tatiyna

Answer:

m∠CFD is 70°

Step-by-step explanation:

In the rhombus

  • Diagonals bisect the vertex angles
  • Every two adjacent angles are supplementary (their sum 180°)

Let us solve the question

∵ CDEF is a rhombus

∵ ∠E and ∠F are adjacent angles

→ By using the second property above

∴ ∠E and ∠F are supplementary

∵ The sum of the measures of the supplementary angles is 180°

∴ m∠E + m∠F = 180°

∵ m∠E = 40°

∴ 40° + m∠F = 180°

→ Subtract 40 from both sides

∵ 40 - 40 + m∠F = 180 - 40

∴ m∠F = 140°

∵ FD is a diagonal of the rhombus

→ By using the first property above

∴ FD bisects ∠F

→ That means FD divides ∠F into 2 equal angles

∴ m∠CFD = m∠EFD = \frac{1}{2} m∠F

∴ m∠CFD = \frac{1}{2} (140°)

∴ m∠CFD = 70°

6 0
3 years ago
a gardener has 322 tulip bulbs she wants to plant rows of 15 bulbs how many bulbs can be planted how many bulbs will she have le
Elden [556K]

Answer:315 bulbs planted and 7 left over

Step-by-step explanation:322/15 = 21.44

Roughly around 21 rows.

21 x 15 = 315 bulbs planted

322 - 315 = 7 bulbs left over

3 0
3 years ago
At the skating rink, 6 out 10 skaters were able to skate under the limbo bar. Which names the fraction of skaters who were not a
Tasya [4]
2/5 because 10/10 minus 6/10 equals 4/10 which reduces to 2/5
7 0
2 years ago
83 tens times 2 tens
gizmo_the_mogwai [7]

Answer:

16600 should be the answer.

Step-by-step explanation:

because 830 times 20 is 16600.

hope i helped

6 0
3 years ago
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