2 years ago

Please help me with this problem and if you can show your work

Mathematics

1 answer:

ella [17]2 years ago

7 0

Answer:

2.9

just answering wrong because i need points sorry

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U - 4u + 4 = 7 what is U

valentina_108 [34]

Try to get the u’s on one side so for this to happen, you would subtract the four from both sides.
u - 4u = 7 - 4

combine like terms

-3u = 3

divide by -3

u = -1

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3 years ago

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2÷ 2/5<br> I need help on this

PIT_PIT [208]

Answer:

Step-by-step explanation:

keep, change, flip

2/1 (keep) x (change to multiply) 5/2(2/5 flips to 5/2)

2/1 x 5/2

10/2

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2 years ago

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Help me with the last part at the bottom please it says x =

lukranit [14]

Answer:

Step-by-step explanation:

x = 0.8 + 0.2y

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2 years ago

URGENT!!!!! I really suck at these help please I beg of you

taurus [48]

Answer:

Step-by-step explanation:

1) ∠WVZ and ∠VWX are right angles & VX = = WZ Given

2) WV = VW Reflexive property

3) ΔWVZ ≅ ΔVWX HL

4) ∠Z = ∠X CPCT

CPCT --> Corresponding parts of congruent triangle.

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3 years ago

P P,Q and R can finish a task in 8, 10 and 12 hours respectivly.They started working together but after 3 hours, P and R left. H

zimovet [89]

Answer:

45 minutes

Step-by-step explanation:

Assume task completed in total x hours

$\frac{x}{10} + \frac{3}{8} + \frac{3}{12} = 1 \\ 12x + 45 + 30 = 120 \\ 12x = 45 \\ x = \frac{15}{4} = 3 \frac{3}{4}$

So q will take 45 more minutes

7 0

2 years ago

Please help me with this problem and if you can show your work​

Please help me with this problem and if you can show your work