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Svetllana [295]
3 years ago
8

Can you help me with this problem

Mathematics
2 answers:
Deffense [45]3 years ago
8 0
System:
 \left \{ {{x+y=11} \atop {x+1.75y=14}} \right.

x+y=11

x=11-y then 11-y+1.75y=14
0.75y=14-11=3
y=4 - orange juice
x=11-4=7 - apple juice

if you wanna use a graphic method you should draw the lines of each equation. The intersection of these lines is solution

Ksenya-84 [330]3 years ago
4 0
4 apple juice and 4 Orange juice because 1.75 x 4=7 and 4 x 1 = 4. So 7+4=11 so you bought 4 bottles of orange juice and 4 bottles of Apple juice
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Do you agree or disagree
lakkis [162]
Disagree she needs 7 cups of bananas because 1.75×4=7  
3 0
3 years ago
Read 2 more answers
Given triangle ABC, A=105°, a=10cm, b=7cm, find B,C and c.
Whitepunk [10]

The value of the side c will be 5.56 cm and angle C is 32.49° and angle B is 42.51°.

<h3>What is law of cosine?</h3>

Let there is a triangle ABC such that |AB| = a units, |AC| = b units, and |BC| = c units and the internal angle A is of θ degrees, then we have:

a² + b² – 2ab cos C = c²

Given triangle ABC, A = 105°, a = 10 cm, b = 7 cm.

Then we have

7² + c² – (2 · 7 · c) cos 105° = 10²

c² + 3.62c – 51 = 0

On solving, we have

c = 5.56

Then the angle C will be

10² + 7² – 2 · 7 · 10 · cos C = 5.56²

                149 – 140 cos C = 30.91

                                 cos C = 0.8435

                                        C = 32.49°

We know that

       ∠A + ∠B + ∠C = 180°

105° + ∠B + 32.49° = 180°

                         ∠B = 42.51°

Learn more about law of cosines here:

brainly.com/question/17289163

#SPJ1

4 0
2 years ago
How do you graph y=5x–9
Soloha48 [4]

Answer:

Step-by-step explanation:

your starting point is -9 so if you find one of your points multiply that by 5 and you have found your y axis

6 0
3 years ago
Jane cycles 27km at 12km/h how long does she take ??? Plsss helppppppppp
taurus [48]
My guess is 30 mins sorry if wrong hope this helps
7 0
3 years ago
Worth 50 points!!!!!!!!!!!!!!!!!!!!!!!!
erica [24]
Hi,

o) 357 - 486 = -129
f) 4572 + 609 = 5181
b) -12 - 31 = -43
n) - 15 + 8 = -7

Hope this helps.
r3t40
5 0
3 years ago
Read 2 more answers
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