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lbvjy [14]
3 years ago
9

I need help on 15 please

Mathematics
1 answer:
Nikolay [14]3 years ago
4 0
The ratio 12:20 because you need it to be equal to 3:5. 3 times 4 which makes 12 so you need to multiply 5 with 4 too
You might be interested in
Maristella is constructing an isosceles triangle to use as a model in her Algebra class. The perimeter of her triangle is 24 cm.
Vlada [557]

Isolating s, the equation written in terms of s is:

s = 12 - 0.5b

-------------------------

  • The equation for the length of the third side, as stated in the problem,("Maristella uses the equation b = 24 – 2s to find b, the length of the triangle's third side") is:

b = 24 - 2s

  • To solve for the lengths of the congruent sides, we isolate s, thus:

b = 24 - 2s

2s = 24 - b

Inverse of multiplication is division, thus:

s = \frac{24 - b}{2}

Separating into two fractions:

s = \frac{24}{2} - \frac{b}{2}

Solving each fraction:

s = 12 - 0.5b

A similar problem is given at brainly.com/question/5123313

3 0
3 years ago
A student believes she can earn between $5200 and $6250 from her summer job. She knows that she will have to buy four new tires
ohaa [14]

Answer:

4180 to 5230$

Step-by-step explanation:

1. Lets find the expenses she has to make -> 4*90+660=1020$(4 new tires + other expenses)

2. As her income is not set strictly we can guess the range she can save(More accurate calculations depends on her strict incomes). We have 5200-1020=4180$(if she gets paid 5200$) and 6250-1020= 5230$(if she gets paid 6250$).

3. So the range of savings vary from 4180 to 5230$$.

4 0
3 years ago
Please help! Algebra 1 math.
olya-2409 [2.1K]
A.   The data in the table represent a function. y=x/2. This is seen as for every value of x in the table, y=x/2(half of it). You can show this further by trying this fact on each value.

B.   For the original function, when x =8, y=x/2=4
For the function given in this part, when x=8, y=3(8)-10
                                                                 y=24-10                                                                                                            y=14
     This means the relation given in this part has a greater value when x=8

C. When x=80, f(x)=3(80)-10
                           =240-10
                           =230 
4 0
3 years ago
How is associative property like commutative property
CaHeK987 [17]
They give you the same answer it just that one has parenthesis and the other one doesn't.
7 0
3 years ago
Estimate the sum of 9.327 + 5.72 + 4132 to one decimal place
IrinaK [193]
9.327 rounds to 9.3
5.72 rounds to 5.7
4132 rounds to 4132

9.3 + 5.7 + 4132 =
15 + 4132 = 4147
8 0
3 years ago
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