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3 years ago

URGENT These are just 3 easy fill in the blank math problems.

Mathematics

2 answers:

elena-14-01-66 [18.8K]3 years ago

6 0

Answer:

1. minus

2. srry i dunno this one

3. minus (again)

kirill [66]3 years ago

3 0

Answer:

Same signs add and keep different signs subtract take the sign of the higher number then youll be exact! :)

Step-by-step explanation:

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Convert the following equation into standard form Y equals negative 7X over 8 +4

dusya [7]

9514 1404 393

Answer:

7x +8y = 32

Step-by-step explanation:

Clear fractions and add the opposite of the x-term.

y = -7x/8 +4

8y = -7x +32 . . . . . multiply by 8

7x +8y = 32 . . . . . .add 7x

8 0

2 years ago

Serena is building a bookcase she cuts two pieces of wood from one board one piece is 1 7/8 feey long and another is 3.5 ft long

Vladimir79 [104]

Answer:

$\frac{43}{8}$ feet

Step-by-step explanation:

The total change is the sum of the length of two boards she cut.

First board length is 1 7/8th feet. Let's change to improper fraction:

1 7/8 = 15/8 feet

Second board lengrh is 3.5 feet, or 3 1/2 feet. Let's change to improper fraction:

3 1/2 = 7/2 feet

Let's add the two:

$\frac{15}{8}+\frac{7}{2}\\=\frac{15+28}{8}\\=\frac{43}{8}$

The change in original board is 43/8 feet

3 0

2 years ago

If m<ECD is six less than five times m<BCE. and m<BCD = 162°, find each measure.(Sorry bout using the wrong signs, but

tia_tia [17]

Answer:

m∠BCE = 28° and m∠ECD = 134°

Step-by-step explanation:

* Lets explain how to solve the problem

- The figure has three angles: ∠BCE , ∠ECD , and ∠BCD

- m∠ECD is six less than five times m∠BCE

- That means when we multiply measure of angle BCE by five and

then subtract six from this product the answer will be the measure

of angle ECD

∴ m∠ECD = 5 m∠BCE - 6 ⇒ (1)

∵ m∠BCD = m∠BCE + m∠ECD

∵ m∠BCD = 162°

∴ m∠BCE + m∠ECD = 162 ⇒ (2)

- Substitute equation (1) in equation (2) to replace angle ECD by

angle BCE

∴ m∠BCE + (5 m∠BCE - 6) = 162

- Add the like terms

∴ 6 m∠BCE - 6 = 162

- Add 6 to both sides

∴ 6 m∠BCE = 168

- Divide both sides by 6

∴ m∠BCE = 28°

- Substitute the measure of angle BCE in equation (1) to find the

measure of angle ECD

∵ m∠ECD = 5 m∠BCE - 6

∵ m∠BCE = 28°

∴ m∠ECD = 5(28) - 6 = 140 - 6 = 134°

* m∠BCE = 28° and m∠ECD = 134°

3 0

3 years ago

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Here a subtraction problem that has been solved incorrectly what is the right way 74-25=59

jek_recluse [69]

Answer:

74-25 is 49

Step-by-step explanation:

7 0

2 years ago

Question 3.. will give brainliest

Anna11 [10]

Answer:

-0.5

Step-by-step explanation:

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2 years ago

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