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dolphi86 [110]
3 years ago
15

Shirley got 72% on a Chemistry exam. The test was marked out of 150.

Mathematics
2 answers:
tensa zangetsu [6.8K]3 years ago
5 0

Answer:

Nhjj

Step-by-step explanation:

tankabanditka [31]3 years ago
4 0

Step-by-step explanation:

the answer is

a)108

b)120

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The function rule C = 10n + 26 relates the number of people n who attend a small concert to the cost in dollars C of the concert
Nezavi [6.7K]
This is the concept of functions. We are required to calculate for the total cost of tickets if 27, 39 and 43 people attended a concert whose cost was represented by C=10n+26.
To solve for this we substitute the each values in the function as follows;
When n=27
C(27)=10*27+26=296

When n=39
C(39)=10*39+26=416

When n=43
C(43)=10*43+26
=456
4 0
3 years ago
Pedro was curious if circles a and b with x and y Being on a circle respectively with similar so he tried to math one figure ont
tatuchka [14]

Answer:

The strategy Pedro tend to do isn't worth, because using rigid transformation to place on figure onto the other won't prove that those figures are similar, but it would prove if they are congruent.

Remember that similarity is about proportionality between dimensions of those figures, so it's not about congruence. That means the figures won't match when we place one onto the other.

To prove similarity, Pedro should divide each pair of corresponding coordinate, if all divisions give the same result, that means those figures are similar.

<h3>Therefore, Pedro is not right.</h3>
3 0
3 years ago
Identify the number as a regional or irrational.explain. 291.87
Ugo [173]

Answer:

291.87 is a rational number.

Step-by-step explanation:

Rational numbers are those numbers that can be expressed in fractions that is can be written as \frac{p}{q} where p and q are integers and q\neq 0.

Consider the given number 291.87

Rewrite the decimal number as a fraction with 1 in the denominator, we get,

291.87=\frac{291.87}{1}

Multiply to remove 2 decimal places. Here, you multiply top and bottom by 10² = 100

\frac{291.87}{1}=\frac{29187}{100}

Thus, the above fraction can be written as,

\frac{29187}{100}=291\frac{87}{100}

Thus, 291.87 is a rational number.


6 0
3 years ago
Help me please!!!!!!
lara [203]

Answer:

Step-by-step explanation:

Seeds for each row = Total number of seeds/Number of rows

=(1220+750+1450)/60

=3420/60

=57 seeds per row

5 0
3 years ago
How do you do recursive formulas
Norma-Jean [14]

Answer:

Determine if the sequence is arithmetic (Do you add, or subtract, the same amount from one term to the next?)

Find the common difference.

Step-by-step explanation:


6 0
3 years ago
Read 2 more answers
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