2 years ago

PLEASE HELP

Mathematics

1 answer:

ruslelena [56]2 years ago

4 0

Answer:

Rosaria purchased 50 bracelets and 70 necklaces

Step-by-step explanation:

Let the number of bracelets be b and the number of necklaces be n

b + n = 120 •••••(i)

Secondly;

10b + 11n = 1270 ••••(ii)

Total cost of b bracelets at 10 per 1 is 10b

Total cost of n bracelets at 11 per 1 is 11n

Adding both gives 1270

From i, b = 120-n

Substitute this into ii

10(120-n) + 11n = 1270

1200 - 10n + 11n = 1270

n = 1270-1200

n = 70

b = 120-n

b = 120-70

b = 50

You might be interested in

On a hike, Parker noticed that the temperature at the base of a mountain was 69°F. At a point on the mountain that was 2,000 fee

Darina [25.2K]

Answer:

-0.003 %Fahrenheit

Step-by-step explanation:

5 0

3 years ago

Three-fourths of a number is greater than or equal to nine less than a number.

NARA [144]

Answer:

$\frac{3}{4} x \geqslant x - 9$

8 0

3 years ago

Brandy took 3 friends out for dinner. The cost of the meal was 46.15 she left the 20% tip what was the total cost including the

slega [8]

Answer: $55.35

Step-by-step explanation:

if the bill is $46.15, round it up to $46. Twenty percent of that is $9.20, found by moving the decimal point one place left. Add $9.20 to $46.15, and you get $55.35

i hope this is correct and it helps :)

8 0

2 years ago

What is the value of x for this question?

cestrela7 [59]

Answer:

Step-by-step explanation:

3x + 3

6 + 2x

3x + 2x = 5x

3 + 6 = 9

5x + 9

4 0

2 years ago

A farmer is comparing the number of eggs laid by two hens. The first hen laid 7 eggs per week for x weeks. The second hen laid 8

nikitadnepr [17]

Answer:

7x ≥ 8y

Step-by-step explanation:

The first hen laid 7 eggs per week for x weeks. 7x

The second hen laid 8 eggs per week for y weeks. 8y

The total number of eggs laid by the first hen was at least the total number of eggs laid by the second hen.

7x ≥ 8y

7 0

3 years ago