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creativ13 [48]
3 years ago
7

WILL GIVE BRAINLIEST!!!!!

Mathematics
2 answers:
Svetach [21]3 years ago
7 0

Answer:

1.   30x+60y=800

let 60y=800-30x

then:

30x+800-30x=800

0=0

2.     You look nice and smart  and a little mean

Darrick (DJ) Webb

Step-by-step explanation:

tatuchka [14]3 years ago
7 0

Answer:

infinitely many

Step-by-step explanation:

30x+60y=800

let 60y=800-30x

then:

30x+800-30x=800

0=0

infinitely many- unless you want to factor it instead of solving

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When an object is thrown upwards with a speed of 64 ft/sec, its height above the ground is given by the function h(t)=−16t2+64t
Svet_ta [14]

Answer:

The object will reach its highest point 0.5 seconds after it has been thrown.

Step-by-step explanation:

The object reaches its maximum height when velocity is equal to zero, the velocity is the derivative of function height. That is:

v(t) = \frac{d}{dt}h(t) (1)

Where v(t) is the velocity of the object at time t, in feet per seconds.

If we know that h(t) =-16\cdot t^{2}+64\cdot t and v(t) = 0\,\frac{ft}{s}, then the time when object reaches its highest point is:

v(t) = -32\cdot t+64

-32\cdot t + 64 = 0

t = 0.5\,s

The object will reach its highest point 0.5 seconds after it has been thrown.

3 0
2 years ago
Y = -x + 2 3x + 3y - 6​
olganol [36]

Graph.
y
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7 0
3 years ago
Read 2 more answers
Freddy’s savings account went from $520 to $321 after he purchased a new bike. What was the percent decrease?
Vinil7 [7]

Step-by-step explanation:

The bike cost $199 to get $199 you do a number line then label 520 then at the end label 321 so then you do -20 then -100 then -50 then -20 then -9. so now you add them up 20+100+50+20+9 which equals =199

so bike cost $199

then 520%×199= 1034.8

or 520%×321=1669.2

so the  percentage is 1669.2 or 1034.8 probably 1669.2 but they bot count.

5 0
2 years ago
How many Erving of 3/4 cup of beans are in half a cup?
jenyasd209 [6]
Well a half cup is 2/4 and if the serving size is 3/4 there is only 66.66% of the serving size needed hope this helps!
7 0
3 years ago
sweet T has 2 orange picks for every 5 green.If there are 21 picks in all,How many picks are orange?
kipiarov [429]
6 of the picks are orange.
8 0
3 years ago
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