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3 years ago

Please help me! I’m struggling so much: x-3y=3 2x+9y=11 (please find x and y plot points ill give brainliest!!)

Mathematics

2 answers:

Basile [38]3 years ago

6 0

Answer:

CORRECT AMONDO

Step-by-step explanation:

Mazyrski [523]3 years ago

3 0

Answer:

Rearrange [1] to get an expression for

[

]

XXXXX

Substitute the expression for

from [3] into [2]

[

]

XXXXX

(

)

Simplify

[

]

XXXXX

[

]

XXXXX

[

]

XXXXX

Substitute the value of

from [7] into [1]

[

]

XXXXX

−

(

)

Simplify

[

]

XXXXX

The solution is

(

)

(

)

Step-by-step explanation:

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Three sailors were marooned on a deserted island that was also inhabited by a band of monkeys. The sailors worked all day to col

noname [10]

Step-by-step explanation:

x-the initial number of coconuts

x=3y+1

2y=3z+1

2z=3×7+1=>z=11=>y=17=>x=52

7 0

3 years ago

Help I’ll give you 30 points

Gnesinka [82]

Answer:

a) 16.25 centimeters

b) 6.8 centimeters

Step-by-step explanation:

We can set up a proportion for both of these problems.

a) Look at the longest side of each triangle. We can set up a fraction: 7.2/18. We can also set up a fraction for XZ and PR:

6.5/x

x represents the length you're trying to find.

Since the triangles are similar, we have an equation:

7.2/18=6.5/x

Cross multiply

16.25

XZ is 16.25 centimeters long.

We can do same thing:

7.2/18=x/17

Cross multiply

6.8

QR is 6.8 centimeters long.

Hope this helps!

6 0

3 years ago

Read 2 more answers

What is the value of y in the equation 3(3y − 15) = 0? 5 6 7 9

mezya [45]

Y = 5
3(3y - 15) is also equal to 9y - 45, which means to find y, you have to divide 45 by 9, which is 5.

4 0

3 years ago

un aliaj de platina are titlu de 0,800 si contine 1968 g de platina pura. Aflati masa aliajului. E urgent!!!!!!!!!!!!!!!!!!!1

MrRissso [65]

așa că nu sunt sigur ce vrei să spui ce este întrebarea?

7 0

3 years ago

Convert into mixed number 81/3 and -29/2

LuckyWell [14K]

Hmmmm to convert from improper to mixed, simply do the division of both, the quotient gets upfront, the remainder as the numerator, for example,

how many times 3 goes into 81? well, 27 times, with a remainder of 0, thus $\bf 27\frac{0}{3}$

how many times does 2 go into 29? well 14 times, with a remainder of 1, thus $\bf -14\frac{1}{2}$

8 0

3 years ago

Read 2 more answers