5% times blank equals 2.5 NEED ASAP

Mathematics

2 answers:

stealth61 [152]4 years ago

6 0

Answer:

Step-by-step explanation:

5%=0.05

0.05×n=2.5 Is equivalent to 2.5÷0.05=n

n=50

easier way

0.05n=2.5

÷0.05 ÷0.05

n=50

lapo4ka [179]4 years ago

5 0

Answer:

0.5

Step-by-step explanation:

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vaieri [72.5K]

9 is the blank.

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Two families visited an amusement park. The first family bought 2 hot dogs and 3 bottles of waters, which totaled $18. The secon

Ghella [55]

Answer:

$6.00

Step-by-step explanation:

To solve this problem, we have to construct two separate equations for each family, and then use any of the methods for solving simultaneous equations.

Let's consider h to represent the cost of 1 hot dog, and w to mean the cost of 1 water bottle.

• For the first family:

$2h + 3w = 18$

We can rearrange the equation to make w the subject:

⇒ $3w = 18 - 2h$

⇒ $w = \frac{18 - 2h}{3}$

• For the second family:

$4h + 2w = 28$

Since we have previously obtained an expression for w in terms of h, we can substitute that expression for w in the above equation, and then solve for h:

⇒ $4h + 2(\frac{18 - 2h}{3}) = 28$