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Mashutka [201]
3 years ago
7

I suck at math can someone help. ;-;

Mathematics
1 answer:
Lelu [443]3 years ago
8 0
2a
3c
4b

Cross multiply for 2

Put 4x-5=3x-10 and subtract 3 on both sides. After that add 10 to both sides for 3

Divide everything by 5 and multiply everything by -2 for 4

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In this question, I’m supposed to use sin instead of tan. But the question is worded weirdly. How can I know that I’m suppose to
zhannawk [14.2K]

Answer:

Since the kite is flying, the hypotenuse side of the triangle is 32.4m, while the adjacent side is unknown.

Given the opposite and hypotenuse, we use sine to find the angle.

\boxed{sinθ =  \frac{opp}{hyp} }

sinθ =  \frac{18.3}{32.4}

θ =  {sin}^{ - 1} ( \frac{18.3}{32.4} )

θ= 34.4° (1 d.p.)

Thus, the angle the kite string makes with the ground is 34.4°.

Notes:

cosθ =  \frac{adj}{hyp}

tanθ =  \frac{ opp}{adj}

3 0
3 years ago
Number 21 please and how to do it step by step
Sonbull [250]
-4y+5x=8
3y-3x=-3  -->       divide by (3) y-x=-1
                 then multiply by (4) 4y-4x=-4

-4y+5x=8
4y-4x=-4    
---------------
x=4

then plug x=4 in
4y-4x=-4
4y-4(4)=-4
4y-16=-4
4y=12
y=3

solution: (4;3)
4 0
3 years ago
HEB sells mangos for $2.50 each. Costco Sells them for $1.75 each but has a
Gnoma [55]

Answer:

$20.833

Step-by-step explanation:

HEB:

Total cost = 2.50m

Costco:

Total cost = 50 + 1.75m

Where,

m = number of mangoes

HEB = Costco

2.50m = 50 + 1.75m

2.50m - 1.75m = 50

O.75m = 50

m = 50 / 0.75

= $20.833

6 0
3 years ago
Vic has 14 coins in nickels and quarters the value of this coins is 1.70 how many quarters does he have
marusya05 [52]

Answer:

4 quarters

Step-by-step explanation:

4 quarters = $1

14 nickels = $0.70

6 0
3 years ago
A baseball team scored 432 runs in 72 games. how maney runs did they score on average per game?​
Step2247 [10]

Answer:6

Step-by-step explanation:

8 0
3 years ago
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